update vendor

81 files changed, 27588 insertions, 0 deletions

diff --git a/vendor/google.golang.org/api/storage/v1/storage-api.json b/vendor/google.golang.org/api/storage/v1/storage-api.json
new file mode 100644
index 0000000..bcde291
--- /dev/null
+++ b/vendor/google.golang.org/api/storage/v1/storage-api.json
@@ -0,0 +1,2861 @@
+{
+ "kind": "discovery#restDescription",
+ "etag": "\"jQLIOHBVnDZie4rQHGH1WJF-INE/HunW8kZz70Rw8UgbEglfvbYNW8k\"",
+ "discoveryVersion": "v1",
+ "id": "storage:v1",
+ "name": "storage",
+ "version": "v1",
+ "revision": "20160504",
+ "title": "Cloud Storage JSON API",
+ "description": "Stores and retrieves potentially large, immutable data objects.",
+ "ownerDomain": "google.com",
+ "ownerName": "Google",
+ "icons": {
+  "x16": "https://www.google.com/images/icons/product/cloud_storage-16.png",
+  "x32": "https://www.google.com/images/icons/product/cloud_storage-32.png"
+ },
+ "documentationLink": "https://developers.google.com/storage/docs/json_api/",
+ "labels": [
+  "labs"
+ ],
+ "protocol": "rest",
+ "baseUrl": "https://www.googleapis.com/storage/v1/",
+ "basePath": "/storage/v1/",
+ "rootUrl": "https://www.googleapis.com/",
+ "servicePath": "storage/v1/",
+ "batchPath": "batch",
+ "parameters": {
+  "alt": {
+   "type": "string",
+   "description": "Data format for the response.",
+   "default": "json",
+   "enum": [
+    "json"
+   ],
+   "enumDescriptions": [
+    "Responses with Content-Type of application/json"
+   ],
+   "location": "query"
+  },
+  "fields": {
+   "type": "string",
+   "description": "Selector specifying which fields to include in a partial response.",
+   "location": "query"
+  },
+  "key": {
+   "type": "string",
+   "description": "API key. Your API key identifies your project and provides you with API access, quota, and reports. Required unless you provide an OAuth 2.0 token.",
+   "location": "query"
+  },
+  "oauth_token": {
+   "type": "string",
+   "description": "OAuth 2.0 token for the current user.",
+   "location": "query"
+  },
+  "prettyPrint": {
+   "type": "boolean",
+   "description": "Returns response with indentations and line breaks.",
+   "default": "true",
+   "location": "query"
+  },
+  "quotaUser": {
+   "type": "string",
+   "description": "Available to use for quota purposes for server-side applications. Can be any arbitrary string assigned to a user, but should not exceed 40 characters. Overrides userIp if both are provided.",
+   "location": "query"
+  },
+  "userIp": {
+   "type": "string",
+   "description": "IP address of the site where the request originates. Use this if you want to enforce per-user limits.",
+   "location": "query"
+  }
+ },
+ "auth": {
+  "oauth2": {
+   "scopes": {
+    "https://www.googleapis.com/auth/cloud-platform": {
+     "description": "View and manage your data across Google Cloud Platform services"
+    },
+    "https://www.googleapis.com/auth/cloud-platform.read-only": {
+     "description": "View your data across Google Cloud Platform services"
+    },
+    "https://www.googleapis.com/auth/devstorage.full_control": {
+     "description": "Manage your data and permissions in Google Cloud Storage"
+    },
+    "https://www.googleapis.com/auth/devstorage.read_only": {
+     "description": "View your data in Google Cloud Storage"
+    },
+    "https://www.googleapis.com/auth/devstorage.read_write": {
+     "description": "Manage your data in Google Cloud Storage"
+    }
+   }
+  }
+ },
+ "schemas": {
+  "Bucket": {
+   "id": "Bucket",
+   "type": "object",
+   "description": "A bucket.",
+   "properties": {
+    "acl": {
+     "type": "array",
+     "description": "Access controls on the bucket.",
+     "items": {
+      "$ref": "BucketAccessControl"
+     },
+     "annotations": {
+      "required": [
+       "storage.buckets.update"
+      ]
+     }
+    },
+    "cors": {
+     "type": "array",
+     "description": "The bucket's Cross-Origin Resource Sharing (CORS) configuration.",
+     "items": {
+      "type": "object",
+      "properties": {
+       "maxAgeSeconds": {
+        "type": "integer",
+        "description": "The value, in seconds, to return in the  Access-Control-Max-Age header used in preflight responses.",
+        "format": "int32"
+       },
+       "method": {
+        "type": "array",
+        "description": "The list of HTTP methods on which to include CORS response headers, (GET, OPTIONS, POST, etc) Note: \"*\" is permitted in the list of methods, and means \"any method\".",
+        "items": {
+         "type": "string"
+        }
+       },
+       "origin": {
+        "type": "array",
+        "description": "The list of Origins eligible to receive CORS response headers. Note: \"*\" is permitted in the list of origins, and means \"any Origin\".",
+        "items": {
+         "type": "string"
+        }
+       },
+       "responseHeader": {
+        "type": "array",
+        "description": "The list of HTTP headers other than the simple response headers to give permission for the user-agent to share across domains.",
+        "items": {
+         "type": "string"
+        }
+       }
+      }
+     }
+    },
+    "defaultObjectAcl": {
+     "type": "array",
+     "description": "Default access controls to apply to new objects when no ACL is provided.",
+     "items": {
+      "$ref": "ObjectAccessControl"
+     }
+    },
+    "etag": {
+     "type": "string",
+     "description": "HTTP 1.1 Entity tag for the bucket."
+    },
+    "id": {
+     "type": "string",
+     "description": "The ID of the bucket."
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For buckets, this is always storage#bucket.",
+     "default": "storage#bucket"
+    },
+    "lifecycle": {
+     "type": "object",
+     "description": "The bucket's lifecycle configuration. See lifecycle management for more information.",
+     "properties": {
+      "rule": {
+       "type": "array",
+       "description": "A lifecycle management rule, which is made of an action to take and the condition(s) under which the action will be taken.",
+       "items": {
+        "type": "object",
+        "properties": {
+         "action": {
+          "type": "object",
+          "description": "The action to take.",
+          "properties": {
+           "type": {
+            "type": "string",
+            "description": "Type of the action. Currently, only Delete is supported."
+           }
+          }
+         },
+         "condition": {
+          "type": "object",
+          "description": "The condition(s) under which the action will be taken.",
+          "properties": {
+           "age": {
+            "type": "integer",
+            "description": "Age of an object (in days). This condition is satisfied when an object reaches the specified age.",
+            "format": "int32"
+           },
+           "createdBefore": {
+            "type": "string",
+            "description": "A date in RFC 3339 format with only the date part (for instance, \"2013-01-15\"). This condition is satisfied when an object is created before midnight of the specified date in UTC.",
+            "format": "date"
+           },
+           "isLive": {
+            "type": "boolean",
+            "description": "Relevant only for versioned objects. If the value is true, this condition matches live objects; if the value is false, it matches archived objects."
+           },
+           "numNewerVersions": {
+            "type": "integer",
+            "description": "Relevant only for versioned objects. If the value is N, this condition is satisfied when there are at least N versions (including the live version) newer than this version of the object.",
+            "format": "int32"
+           }
+          }
+         }
+        }
+       }
+      }
+     }
+    },
+    "location": {
+     "type": "string",
+     "description": "The location of the bucket. Object data for objects in the bucket resides in physical storage within this region. Defaults to US. See the developer's guide for the authoritative list."
+    },
+    "logging": {
+     "type": "object",
+     "description": "The bucket's logging configuration, which defines the destination bucket and optional name prefix for the current bucket's logs.",
+     "properties": {
+      "logBucket": {
+       "type": "string",
+       "description": "The destination bucket where the current bucket's logs should be placed."
+      },
+      "logObjectPrefix": {
+       "type": "string",
+       "description": "A prefix for log object names."
+      }
+     }
+    },
+    "metageneration": {
+     "type": "string",
+     "description": "The metadata generation of this bucket.",
+     "format": "int64"
+    },
+    "name": {
+     "type": "string",
+     "description": "The name of the bucket.",
+     "annotations": {
+      "required": [
+       "storage.buckets.insert"
+      ]
+     }
+    },
+    "owner": {
+     "type": "object",
+     "description": "The owner of the bucket. This is always the project team's owner group.",
+     "properties": {
+      "entity": {
+       "type": "string",
+       "description": "The entity, in the form project-owner-projectId."
+      },
+      "entityId": {
+       "type": "string",
+       "description": "The ID for the entity."
+      }
+     }
+    },
+    "projectNumber": {
+     "type": "string",
+     "description": "The project number of the project the bucket belongs to.",
+     "format": "uint64"
+    },
+    "selfLink": {
+     "type": "string",
+     "description": "The URI of this bucket."
+    },
+    "storageClass": {
+     "type": "string",
+     "description": "The bucket's storage class. This defines how objects in the bucket are stored and determines the SLA and the cost of storage. Values include STANDARD, NEARLINE and DURABLE_REDUCED_AVAILABILITY. Defaults to STANDARD. For more information, see storage classes."
+    },
+    "timeCreated": {
+     "type": "string",
+     "description": "The creation time of the bucket in RFC 3339 format.",
+     "format": "date-time"
+    },
+    "updated": {
+     "type": "string",
+     "description": "The modification time of the bucket in RFC 3339 format.",
+     "format": "date-time"
+    },
+    "versioning": {
+     "type": "object",
+     "description": "The bucket's versioning configuration.",
+     "properties": {
+      "enabled": {
+       "type": "boolean",
+       "description": "While set to true, versioning is fully enabled for this bucket."
+      }
+     }
+    },
+    "website": {
+     "type": "object",
+     "description": "The bucket's website configuration.",
+     "properties": {
+      "mainPageSuffix": {
+       "type": "string",
+       "description": "Behaves as the bucket's directory index where missing objects are treated as potential directories."
+      },
+      "notFoundPage": {
+       "type": "string",
+       "description": "The custom object to return when a requested resource is not found."
+      }
+     }
+    }
+   }
+  },
+  "BucketAccessControl": {
+   "id": "BucketAccessControl",
+   "type": "object",
+   "description": "An access-control entry.",
+   "properties": {
+    "bucket": {
+     "type": "string",
+     "description": "The name of the bucket."
+    },
+    "domain": {
+     "type": "string",
+     "description": "The domain associated with the entity, if any."
+    },
+    "email": {
+     "type": "string",
+     "description": "The email address associated with the entity, if any."
+    },
+    "entity": {
+     "type": "string",
+     "description": "The entity holding the permission, in one of the following forms: \n- user-userId \n- user-email \n- group-groupId \n- group-email \n- domain-domain \n- project-team-projectId \n- allUsers \n- allAuthenticatedUsers Examples: \n- The user liz@example.com would be user-liz@example.com. \n- The group example@googlegroups.com would be group-example@googlegroups.com. \n- To refer to all members of the Google Apps for Business domain example.com, the entity would be domain-example.com.",
+     "annotations": {
+      "required": [
+       "storage.bucketAccessControls.insert"
+      ]
+     }
+    },
+    "entityId": {
+     "type": "string",
+     "description": "The ID for the entity, if any."
+    },
+    "etag": {
+     "type": "string",
+     "description": "HTTP 1.1 Entity tag for the access-control entry."
+    },
+    "id": {
+     "type": "string",
+     "description": "The ID of the access-control entry."
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For bucket access control entries, this is always storage#bucketAccessControl.",
+     "default": "storage#bucketAccessControl"
+    },
+    "projectTeam": {
+     "type": "object",
+     "description": "The project team associated with the entity, if any.",
+     "properties": {
+      "projectNumber": {
+       "type": "string",
+       "description": "The project number."
+      },
+      "team": {
+       "type": "string",
+       "description": "The team. Can be owners, editors, or viewers."
+      }
+     }
+    },
+    "role": {
+     "type": "string",
+     "description": "The access permission for the entity. Can be READER, WRITER, or OWNER.",
+     "annotations": {
+      "required": [
+       "storage.bucketAccessControls.insert"
+      ]
+     }
+    },
+    "selfLink": {
+     "type": "string",
+     "description": "The link to this access-control entry."
+    }
+   }
+  },
+  "BucketAccessControls": {
+   "id": "BucketAccessControls",
+   "type": "object",
+   "description": "An access-control list.",
+   "properties": {
+    "items": {
+     "type": "array",
+     "description": "The list of items.",
+     "items": {
+      "$ref": "BucketAccessControl"
+     }
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For lists of bucket access control entries, this is always storage#bucketAccessControls.",
+     "default": "storage#bucketAccessControls"
+    }
+   }
+  },
+  "Buckets": {
+   "id": "Buckets",
+   "type": "object",
+   "description": "A list of buckets.",
+   "properties": {
+    "items": {
+     "type": "array",
+     "description": "The list of items.",
+     "items": {
+      "$ref": "Bucket"
+     }
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For lists of buckets, this is always storage#buckets.",
+     "default": "storage#buckets"
+    },
+    "nextPageToken": {
+     "type": "string",
+     "description": "The continuation token, used to page through large result sets. Provide this value in a subsequent request to return the next page of results."
+    }
+   }
+  },
+  "Channel": {
+   "id": "Channel",
+   "type": "object",
+   "description": "An notification channel used to watch for resource changes.",
+   "properties": {
+    "address": {
+     "type": "string",
+     "description": "The address where notifications are delivered for this channel."
+    },
+    "expiration": {
+     "type": "string",
+     "description": "Date and time of notification channel expiration, expressed as a Unix timestamp, in milliseconds. Optional.",
+     "format": "int64"
+    },
+    "id": {
+     "type": "string",
+     "description": "A UUID or similar unique string that identifies this channel."
+    },
+    "kind": {
+     "type": "string",
+     "description": "Identifies this as a notification channel used to watch for changes to a resource. Value: the fixed string \"api#channel\".",
+     "default": "api#channel"
+    },
+    "params": {
+     "type": "object",
+     "description": "Additional parameters controlling delivery channel behavior. Optional.",
+     "additionalProperties": {
+      "type": "string",
+      "description": "Declares a new parameter by name."
+     }
+    },
+    "payload": {
+     "type": "boolean",
+     "description": "A Boolean value to indicate whether payload is wanted. Optional."
+    },
+    "resourceId": {
+     "type": "string",
+     "description": "An opaque ID that identifies the resource being watched on this channel. Stable across different API versions."
+    },
+    "resourceUri": {
+     "type": "string",
+     "description": "A version-specific identifier for the watched resource."
+    },
+    "token": {
+     "type": "string",
+     "description": "An arbitrary string delivered to the target address with each notification delivered over this channel. Optional."
+    },
+    "type": {
+     "type": "string",
+     "description": "The type of delivery mechanism used for this channel."
+    }
+   }
+  },
+  "ComposeRequest": {
+   "id": "ComposeRequest",
+   "type": "object",
+   "description": "A Compose request.",
+   "properties": {
+    "destination": {
+     "$ref": "Object",
+     "description": "Properties of the resulting object."
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is.",
+     "default": "storage#composeRequest"
+    },
+    "sourceObjects": {
+     "type": "array",
+     "description": "The list of source objects that will be concatenated into a single object.",
+     "items": {
+      "type": "object",
+      "properties": {
+       "generation": {
+        "type": "string",
+        "description": "The generation of this object to use as the source.",
+        "format": "int64"
+       },
+       "name": {
+        "type": "string",
+        "description": "The source object's name. The source object's bucket is implicitly the destination bucket.",
+        "annotations": {
+         "required": [
+          "storage.objects.compose"
+         ]
+        }
+       },
+       "objectPreconditions": {
+        "type": "object",
+        "description": "Conditions that must be met for this operation to execute.",
+        "properties": {
+         "ifGenerationMatch": {
+          "type": "string",
+          "description": "Only perform the composition if the generation of the source object that would be used matches this value. If this value and a generation are both specified, they must be the same value or the call will fail.",
+          "format": "int64"
+         }
+        }
+       }
+      }
+     },
+     "annotations": {
+      "required": [
+       "storage.objects.compose"
+      ]
+     }
+    }
+   }
+  },
+  "Object": {
+   "id": "Object",
+   "type": "object",
+   "description": "An object.",
+   "properties": {
+    "acl": {
+     "type": "array",
+     "description": "Access controls on the object.",
+     "items": {
+      "$ref": "ObjectAccessControl"
+     },
+     "annotations": {
+      "required": [
+       "storage.objects.update"
+      ]
+     }
+    },
+    "bucket": {
+     "type": "string",
+     "description": "The name of the bucket containing this object."
+    },
+    "cacheControl": {
+     "type": "string",
+     "description": "Cache-Control directive for the object data."
+    },
+    "componentCount": {
+     "type": "integer",
+     "description": "Number of underlying components that make up this object. Components are accumulated by compose operations.",
+     "format": "int32"
+    },
+    "contentDisposition": {
+     "type": "string",
+     "description": "Content-Disposition of the object data."
+    },
+    "contentEncoding": {
+     "type": "string",
+     "description": "Content-Encoding of the object data."
+    },
+    "contentLanguage": {
+     "type": "string",
+     "description": "Content-Language of the object data."
+    },
+    "contentType": {
+     "type": "string",
+     "description": "Content-Type of the object data. If contentType is not specified, object downloads will be served as application/octet-stream."
+    },
+    "crc32c": {
+     "type": "string",
+     "description": "CRC32c checksum, as described in RFC 4960, Appendix B; encoded using base64 in big-endian byte order. For more information about using the CRC32c checksum, see Hashes and ETags: Best Practices."
+    },
+    "customerEncryption": {
+     "type": "object",
+     "description": "Metadata of customer-supplied encryption key, if the object is encrypted by such a key.",
+     "properties": {
+      "encryptionAlgorithm": {
+       "type": "string",
+       "description": "The encryption algorithm."
+      },
+      "keySha256": {
+       "type": "string",
+       "description": "SHA256 hash value of the encryption key."
+      }
+     }
+    },
+    "etag": {
+     "type": "string",
+     "description": "HTTP 1.1 Entity tag for the object."
+    },
+    "generation": {
+     "type": "string",
+     "description": "The content generation of this object. Used for object versioning.",
+     "format": "int64"
+    },
+    "id": {
+     "type": "string",
+     "description": "The ID of the object."
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For objects, this is always storage#object.",
+     "default": "storage#object"
+    },
+    "md5Hash": {
+     "type": "string",
+     "description": "MD5 hash of the data; encoded using base64. For more information about using the MD5 hash, see Hashes and ETags: Best Practices."
+    },
+    "mediaLink": {
+     "type": "string",
+     "description": "Media download link."
+    },
+    "metadata": {
+     "type": "object",
+     "description": "User-provided metadata, in key/value pairs.",
+     "additionalProperties": {
+      "type": "string",
+      "description": "An individual metadata entry."
+     }
+    },
+    "metageneration": {
+     "type": "string",
+     "description": "The version of the metadata for this object at this generation. Used for preconditions and for detecting changes in metadata. A metageneration number is only meaningful in the context of a particular generation of a particular object.",
+     "format": "int64"
+    },
+    "name": {
+     "type": "string",
+     "description": "The name of this object. Required if not specified by URL parameter."
+    },
+    "owner": {
+     "type": "object",
+     "description": "The owner of the object. This will always be the uploader of the object.",
+     "properties": {
+      "entity": {
+       "type": "string",
+       "description": "The entity, in the form user-userId."
+      },
+      "entityId": {
+       "type": "string",
+       "description": "The ID for the entity."
+      }
+     }
+    },
+    "selfLink": {
+     "type": "string",
+     "description": "The link to this object."
+    },
+    "size": {
+     "type": "string",
+     "description": "Content-Length of the data in bytes.",
+     "format": "uint64"
+    },
+    "storageClass": {
+     "type": "string",
+     "description": "Storage class of the object."
+    },
+    "timeCreated": {
+     "type": "string",
+     "description": "The creation time of the object in RFC 3339 format.",
+     "format": "date-time"
+    },
+    "timeDeleted": {
+     "type": "string",
+     "description": "The deletion time of the object in RFC 3339 format. Will be returned if and only if this version of the object has been deleted.",
+     "format": "date-time"
+    },
+    "updated": {
+     "type": "string",
+     "description": "The modification time of the object metadata in RFC 3339 format.",
+     "format": "date-time"
+    }
+   }
+  },
+  "ObjectAccessControl": {
+   "id": "ObjectAccessControl",
+   "type": "object",
+   "description": "An access-control entry.",
+   "properties": {
+    "bucket": {
+     "type": "string",
+     "description": "The name of the bucket."
+    },
+    "domain": {
+     "type": "string",
+     "description": "The domain associated with the entity, if any."
+    },
+    "email": {
+     "type": "string",
+     "description": "The email address associated with the entity, if any."
+    },
+    "entity": {
+     "type": "string",
+     "description": "The entity holding the permission, in one of the following forms: \n- user-userId \n- user-email \n- group-groupId \n- group-email \n- domain-domain \n- project-team-projectId \n- allUsers \n- allAuthenticatedUsers Examples: \n- The user liz@example.com would be user-liz@example.com. \n- The group example@googlegroups.com would be group-example@googlegroups.com. \n- To refer to all members of the Google Apps for Business domain example.com, the entity would be domain-example.com."
+    },
+    "entityId": {
+     "type": "string",
+     "description": "The ID for the entity, if any."
+    },
+    "etag": {
+     "type": "string",
+     "description": "HTTP 1.1 Entity tag for the access-control entry."
+    },
+    "generation": {
+     "type": "string",
+     "description": "The content generation of the object.",
+     "format": "int64"
+    },
+    "id": {
+     "type": "string",
+     "description": "The ID of the access-control entry."
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For object access control entries, this is always storage#objectAccessControl.",
+     "default": "storage#objectAccessControl"
+    },
+    "object": {
+     "type": "string",
+     "description": "The name of the object."
+    },
+    "projectTeam": {
+     "type": "object",
+     "description": "The project team associated with the entity, if any.",
+     "properties": {
+      "projectNumber": {
+       "type": "string",
+       "description": "The project number."
+      },
+      "team": {
+       "type": "string",
+       "description": "The team. Can be owners, editors, or viewers."
+      }
+     }
+    },
+    "role": {
+     "type": "string",
+     "description": "The access permission for the entity. Can be READER or OWNER."
+    },
+    "selfLink": {
+     "type": "string",
+     "description": "The link to this access-control entry."
+    }
+   }
+  },
+  "ObjectAccessControls": {
+   "id": "ObjectAccessControls",
+   "type": "object",
+   "description": "An access-control list.",
+   "properties": {
+    "items": {
+     "type": "array",
+     "description": "The list of items.",
+     "items": {
+      "type": "any"
+     }
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For lists of object access control entries, this is always storage#objectAccessControls.",
+     "default": "storage#objectAccessControls"
+    }
+   }
+  },
+  "Objects": {
+   "id": "Objects",
+   "type": "object",
+   "description": "A list of objects.",
+   "properties": {
+    "items": {
+     "type": "array",
+     "description": "The list of items.",
+     "items": {
+      "$ref": "Object"
+     }
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is. For lists of objects, this is always storage#objects.",
+     "default": "storage#objects"
+    },
+    "nextPageToken": {
+     "type": "string",
+     "description": "The continuation token, used to page through large result sets. Provide this value in a subsequent request to return the next page of results."
+    },
+    "prefixes": {
+     "type": "array",
+     "description": "The list of prefixes of objects matching-but-not-listed up to and including the requested delimiter.",
+     "items": {
+      "type": "string"
+     }
+    }
+   }
+  },
+  "RewriteResponse": {
+   "id": "RewriteResponse",
+   "type": "object",
+   "description": "A rewrite response.",
+   "properties": {
+    "done": {
+     "type": "boolean",
+     "description": "true if the copy is finished; otherwise, false if the copy is in progress. This property is always present in the response."
+    },
+    "kind": {
+     "type": "string",
+     "description": "The kind of item this is.",
+     "default": "storage#rewriteResponse"
+    },
+    "objectSize": {
+     "type": "string",
+     "description": "The total size of the object being copied in bytes. This property is always present in the response.",
+     "format": "uint64"
+    },
+    "resource": {
+     "$ref": "Object",
+     "description": "A resource containing the metadata for the copied-to object. This property is present in the response only when copying completes."
+    },
+    "rewriteToken": {
+     "type": "string",
+     "description": "A token to use in subsequent requests to continue copying data. This token is present in the response only when there is more data to copy."
+    },
+    "totalBytesRewritten": {
+     "type": "string",
+     "description": "The total bytes written so far, which can be used to provide a waiting user with a progress indicator. This property is always present in the response.",
+     "format": "uint64"
+    }
+   }
+  }
+ },
+ "resources": {
+  "bucketAccessControls": {
+   "methods": {
+    "delete": {
+     "id": "storage.bucketAccessControls.delete",
+     "path": "b/{bucket}/acl/{entity}",
+     "httpMethod": "DELETE",
+     "description": "Permanently deletes the ACL entry for the specified entity on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "get": {
+     "id": "storage.bucketAccessControls.get",
+     "path": "b/{bucket}/acl/{entity}",
+     "httpMethod": "GET",
+     "description": "Returns the ACL entry for the specified entity on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "response": {
+      "$ref": "BucketAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "insert": {
+     "id": "storage.bucketAccessControls.insert",
+     "path": "b/{bucket}/acl",
+     "httpMethod": "POST",
+     "description": "Creates a new ACL entry on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "request": {
+      "$ref": "BucketAccessControl"
+     },
+     "response": {
+      "$ref": "BucketAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "list": {
+     "id": "storage.bucketAccessControls.list",
+     "path": "b/{bucket}/acl",
+     "httpMethod": "GET",
+     "description": "Retrieves ACL entries on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "response": {
+      "$ref": "BucketAccessControls"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "patch": {
+     "id": "storage.bucketAccessControls.patch",
+     "path": "b/{bucket}/acl/{entity}",
+     "httpMethod": "PATCH",
+     "description": "Updates an ACL entry on the specified bucket. This method supports patch semantics.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "request": {
+      "$ref": "BucketAccessControl"
+     },
+     "response": {
+      "$ref": "BucketAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "update": {
+     "id": "storage.bucketAccessControls.update",
+     "path": "b/{bucket}/acl/{entity}",
+     "httpMethod": "PUT",
+     "description": "Updates an ACL entry on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "request": {
+      "$ref": "BucketAccessControl"
+     },
+     "response": {
+      "$ref": "BucketAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    }
+   }
+  },
+  "buckets": {
+   "methods": {
+    "delete": {
+     "id": "storage.buckets.delete",
+     "path": "b/{bucket}",
+     "httpMethod": "DELETE",
+     "description": "Permanently deletes an empty bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "If set, only deletes the bucket if its metageneration matches this value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "If set, only deletes the bucket if its metageneration does not match this value.",
+       "format": "int64",
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    },
+    "get": {
+     "id": "storage.buckets.get",
+     "path": "b/{bucket}",
+     "httpMethod": "GET",
+     "description": "Returns metadata for the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit owner, acl and defaultObjectAcl properties."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "response": {
+      "$ref": "Bucket"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/cloud-platform.read-only",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    },
+    "insert": {
+     "id": "storage.buckets.insert",
+     "path": "b",
+     "httpMethod": "POST",
+     "description": "Creates a new bucket.",
+     "parameters": {
+      "predefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to this bucket.",
+       "enum": [
+        "authenticatedRead",
+        "private",
+        "projectPrivate",
+        "publicRead",
+        "publicReadWrite"
+       ],
+       "enumDescriptions": [
+        "Project team owners get OWNER access, and allAuthenticatedUsers get READER access.",
+        "Project team owners get OWNER access.",
+        "Project team members get access according to their roles.",
+        "Project team owners get OWNER access, and allUsers get READER access.",
+        "Project team owners get OWNER access, and allUsers get WRITER access."
+       ],
+       "location": "query"
+      },
+      "predefinedDefaultObjectAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of default object access controls to this bucket.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "project": {
+       "type": "string",
+       "description": "A valid API project identifier.",
+       "required": true,
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl, unless the bucket resource specifies acl or defaultObjectAcl properties, when it defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit owner, acl and defaultObjectAcl properties."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "project"
+     ],
+     "request": {
+      "$ref": "Bucket"
+     },
+     "response": {
+      "$ref": "Bucket"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    },
+    "list": {
+     "id": "storage.buckets.list",
+     "path": "b",
+     "httpMethod": "GET",
+     "description": "Retrieves a list of buckets for a given project.",
+     "parameters": {
+      "maxResults": {
+       "type": "integer",
+       "description": "Maximum number of buckets to return.",
+       "format": "uint32",
+       "minimum": "0",
+       "location": "query"
+      },
+      "pageToken": {
+       "type": "string",
+       "description": "A previously-returned page token representing part of the larger set of results to view.",
+       "location": "query"
+      },
+      "prefix": {
+       "type": "string",
+       "description": "Filter results to buckets whose names begin with this prefix.",
+       "location": "query"
+      },
+      "project": {
+       "type": "string",
+       "description": "A valid API project identifier.",
+       "required": true,
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit owner, acl and defaultObjectAcl properties."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "project"
+     ],
+     "response": {
+      "$ref": "Buckets"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/cloud-platform.read-only",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    },
+    "patch": {
+     "id": "storage.buckets.patch",
+     "path": "b/{bucket}",
+     "httpMethod": "PATCH",
+     "description": "Updates a bucket. This method supports patch semantics.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "predefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to this bucket.",
+       "enum": [
+        "authenticatedRead",
+        "private",
+        "projectPrivate",
+        "publicRead",
+        "publicReadWrite"
+       ],
+       "enumDescriptions": [
+        "Project team owners get OWNER access, and allAuthenticatedUsers get READER access.",
+        "Project team owners get OWNER access.",
+        "Project team members get access according to their roles.",
+        "Project team owners get OWNER access, and allUsers get READER access.",
+        "Project team owners get OWNER access, and allUsers get WRITER access."
+       ],
+       "location": "query"
+      },
+      "predefinedDefaultObjectAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of default object access controls to this bucket.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit owner, acl and defaultObjectAcl properties."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "request": {
+      "$ref": "Bucket"
+     },
+     "response": {
+      "$ref": "Bucket"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "update": {
+     "id": "storage.buckets.update",
+     "path": "b/{bucket}",
+     "httpMethod": "PUT",
+     "description": "Updates a bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "predefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to this bucket.",
+       "enum": [
+        "authenticatedRead",
+        "private",
+        "projectPrivate",
+        "publicRead",
+        "publicReadWrite"
+       ],
+       "enumDescriptions": [
+        "Project team owners get OWNER access, and allAuthenticatedUsers get READER access.",
+        "Project team owners get OWNER access.",
+        "Project team members get access according to their roles.",
+        "Project team owners get OWNER access, and allUsers get READER access.",
+        "Project team owners get OWNER access, and allUsers get WRITER access."
+       ],
+       "location": "query"
+      },
+      "predefinedDefaultObjectAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of default object access controls to this bucket.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit owner, acl and defaultObjectAcl properties."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "request": {
+      "$ref": "Bucket"
+     },
+     "response": {
+      "$ref": "Bucket"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    }
+   }
+  },
+  "channels": {
+   "methods": {
+    "stop": {
+     "id": "storage.channels.stop",
+     "path": "channels/stop",
+     "httpMethod": "POST",
+     "description": "Stop watching resources through this channel",
+     "request": {
+      "$ref": "Channel",
+      "parameterName": "resource"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/cloud-platform.read-only",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    }
+   }
+  },
+  "defaultObjectAccessControls": {
+   "methods": {
+    "delete": {
+     "id": "storage.defaultObjectAccessControls.delete",
+     "path": "b/{bucket}/defaultObjectAcl/{entity}",
+     "httpMethod": "DELETE",
+     "description": "Permanently deletes the default object ACL entry for the specified entity on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "get": {
+     "id": "storage.defaultObjectAccessControls.get",
+     "path": "b/{bucket}/defaultObjectAcl/{entity}",
+     "httpMethod": "GET",
+     "description": "Returns the default object ACL entry for the specified entity on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "insert": {
+     "id": "storage.defaultObjectAccessControls.insert",
+     "path": "b/{bucket}/defaultObjectAcl",
+     "httpMethod": "POST",
+     "description": "Creates a new default object ACL entry on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "request": {
+      "$ref": "ObjectAccessControl"
+     },
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "list": {
+     "id": "storage.defaultObjectAccessControls.list",
+     "path": "b/{bucket}/defaultObjectAcl",
+     "httpMethod": "GET",
+     "description": "Retrieves default object ACL entries on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "If present, only return default ACL listing if the bucket's current metageneration matches this value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "If present, only return default ACL listing if the bucket's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "response": {
+      "$ref": "ObjectAccessControls"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "patch": {
+     "id": "storage.defaultObjectAccessControls.patch",
+     "path": "b/{bucket}/defaultObjectAcl/{entity}",
+     "httpMethod": "PATCH",
+     "description": "Updates a default object ACL entry on the specified bucket. This method supports patch semantics.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "request": {
+      "$ref": "ObjectAccessControl"
+     },
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "update": {
+     "id": "storage.defaultObjectAccessControls.update",
+     "path": "b/{bucket}/defaultObjectAcl/{entity}",
+     "httpMethod": "PUT",
+     "description": "Updates a default object ACL entry on the specified bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "entity"
+     ],
+     "request": {
+      "$ref": "ObjectAccessControl"
+     },
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    }
+   }
+  },
+  "objectAccessControls": {
+   "methods": {
+    "delete": {
+     "id": "storage.objectAccessControls.delete",
+     "path": "b/{bucket}/o/{object}/acl/{entity}",
+     "httpMethod": "DELETE",
+     "description": "Permanently deletes the ACL entry for the specified entity on the specified object.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object",
+      "entity"
+     ],
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "get": {
+     "id": "storage.objectAccessControls.get",
+     "path": "b/{bucket}/o/{object}/acl/{entity}",
+     "httpMethod": "GET",
+     "description": "Returns the ACL entry for the specified entity on the specified object.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object",
+      "entity"
+     ],
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "insert": {
+     "id": "storage.objectAccessControls.insert",
+     "path": "b/{bucket}/o/{object}/acl",
+     "httpMethod": "POST",
+     "description": "Creates a new ACL entry on the specified object.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object"
+     ],
+     "request": {
+      "$ref": "ObjectAccessControl"
+     },
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "list": {
+     "id": "storage.objectAccessControls.list",
+     "path": "b/{bucket}/o/{object}/acl",
+     "httpMethod": "GET",
+     "description": "Retrieves ACL entries on the specified object.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object"
+     ],
+     "response": {
+      "$ref": "ObjectAccessControls"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "patch": {
+     "id": "storage.objectAccessControls.patch",
+     "path": "b/{bucket}/o/{object}/acl/{entity}",
+     "httpMethod": "PATCH",
+     "description": "Updates an ACL entry on the specified object. This method supports patch semantics.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object",
+      "entity"
+     ],
+     "request": {
+      "$ref": "ObjectAccessControl"
+     },
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "update": {
+     "id": "storage.objectAccessControls.update",
+     "path": "b/{bucket}/o/{object}/acl/{entity}",
+     "httpMethod": "PUT",
+     "description": "Updates an ACL entry on the specified object.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of a bucket.",
+       "required": true,
+       "location": "path"
+      },
+      "entity": {
+       "type": "string",
+       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object",
+      "entity"
+     ],
+     "request": {
+      "$ref": "ObjectAccessControl"
+     },
+     "response": {
+      "$ref": "ObjectAccessControl"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    }
+   }
+  },
+  "objects": {
+   "methods": {
+    "compose": {
+     "id": "storage.objects.compose",
+     "path": "b/{destinationBucket}/o/{destinationObject}/compose",
+     "httpMethod": "POST",
+     "description": "Concatenates a list of existing objects into a new object in the same bucket.",
+     "parameters": {
+      "destinationBucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to store the new object.",
+       "required": true,
+       "location": "path"
+      },
+      "destinationObject": {
+       "type": "string",
+       "description": "Name of the new object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      },
+      "destinationPredefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to the destination object.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "destinationBucket",
+      "destinationObject"
+     ],
+     "request": {
+      "$ref": "ComposeRequest"
+     },
+     "response": {
+      "$ref": "Object"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ],
+     "supportsMediaDownload": true,
+     "useMediaDownloadService": true
+    },
+    "copy": {
+     "id": "storage.objects.copy",
+     "path": "b/{sourceBucket}/o/{sourceObject}/copyTo/b/{destinationBucket}/o/{destinationObject}",
+     "httpMethod": "POST",
+     "description": "Copies a source object to a destination object. Optionally overrides metadata.",
+     "parameters": {
+      "destinationBucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to store the new object. Overrides the provided object metadata's bucket value, if any.For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      },
+      "destinationObject": {
+       "type": "string",
+       "description": "Name of the new object. Required when the object metadata is not otherwise provided. Overrides the object metadata's name value, if any.",
+       "required": true,
+       "location": "path"
+      },
+      "destinationPredefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to the destination object.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl, unless the object resource specifies the acl property, when it defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      },
+      "sourceBucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to find the source object.",
+       "required": true,
+       "location": "path"
+      },
+      "sourceGeneration": {
+       "type": "string",
+       "description": "If present, selects a specific revision of the source object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "sourceObject": {
+       "type": "string",
+       "description": "Name of the source object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "sourceBucket",
+      "sourceObject",
+      "destinationBucket",
+      "destinationObject"
+     ],
+     "request": {
+      "$ref": "Object"
+     },
+     "response": {
+      "$ref": "Object"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ],
+     "supportsMediaDownload": true,
+     "useMediaDownloadService": true
+    },
+    "delete": {
+     "id": "storage.objects.delete",
+     "path": "b/{bucket}/o/{object}",
+     "httpMethod": "DELETE",
+     "description": "Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the generation parameter is used.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which the object resides.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, permanently deletes a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object"
+     ],
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    },
+    "get": {
+     "id": "storage.objects.get",
+     "path": "b/{bucket}/o/{object}",
+     "httpMethod": "GET",
+     "description": "Retrieves an object or its metadata.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which the object resides.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object"
+     ],
+     "response": {
+      "$ref": "Object"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/cloud-platform.read-only",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ],
+     "supportsMediaDownload": true,
+     "useMediaDownloadService": true
+    },
+    "insert": {
+     "id": "storage.objects.insert",
+     "path": "b/{bucket}/o",
+     "httpMethod": "POST",
+     "description": "Stores a new object and metadata.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to store the new object. Overrides the provided object metadata's bucket value, if any.",
+       "required": true,
+       "location": "path"
+      },
+      "contentEncoding": {
+       "type": "string",
+       "description": "If set, sets the contentEncoding property of the final object to this value. Setting this parameter is equivalent to setting the contentEncoding metadata property. This can be useful when uploading an object with uploadType=media to indicate the encoding of the content being uploaded.",
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "name": {
+       "type": "string",
+       "description": "Name of the object. Required when the object metadata is not otherwise provided. Overrides the object metadata's name value, if any. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "location": "query"
+      },
+      "predefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to this object.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl, unless the object resource specifies the acl property, when it defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "request": {
+      "$ref": "Object"
+     },
+     "response": {
+      "$ref": "Object"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ],
+     "supportsMediaDownload": true,
+     "useMediaDownloadService": true,
+     "supportsMediaUpload": true,
+     "mediaUpload": {
+      "accept": [
+       "*/*"
+      ],
+      "protocols": {
+       "simple": {
+        "multipart": true,
+        "path": "/upload/storage/v1/b/{bucket}/o"
+       },
+       "resumable": {
+        "multipart": true,
+        "path": "/resumable/upload/storage/v1/b/{bucket}/o"
+       }
+      }
+     }
+    },
+    "list": {
+     "id": "storage.objects.list",
+     "path": "b/{bucket}/o",
+     "httpMethod": "GET",
+     "description": "Retrieves a list of objects matching the criteria.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to look for objects.",
+       "required": true,
+       "location": "path"
+      },
+      "delimiter": {
+       "type": "string",
+       "description": "Returns results in a directory-like mode. items will contain only objects whose names, aside from the prefix, do not contain delimiter. Objects whose names, aside from the prefix, contain delimiter will have their name, truncated after the delimiter, returned in prefixes. Duplicate prefixes are omitted.",
+       "location": "query"
+      },
+      "maxResults": {
+       "type": "integer",
+       "description": "Maximum number of items plus prefixes to return. As duplicate prefixes are omitted, fewer total results may be returned than requested. The default value of this parameter is 1,000 items.",
+       "format": "uint32",
+       "minimum": "0",
+       "location": "query"
+      },
+      "pageToken": {
+       "type": "string",
+       "description": "A previously-returned page token representing part of the larger set of results to view.",
+       "location": "query"
+      },
+      "prefix": {
+       "type": "string",
+       "description": "Filter results to objects whose names begin with this prefix.",
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      },
+      "versions": {
+       "type": "boolean",
+       "description": "If true, lists all versions of an object as distinct results. The default is false. For more information, see Object Versioning.",
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "response": {
+      "$ref": "Objects"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/cloud-platform.read-only",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ],
+     "supportsSubscription": true
+    },
+    "patch": {
+     "id": "storage.objects.patch",
+     "path": "b/{bucket}/o/{object}",
+     "httpMethod": "PATCH",
+     "description": "Updates an object's metadata. This method supports patch semantics.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which the object resides.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      },
+      "predefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to this object.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object"
+     ],
+     "request": {
+      "$ref": "Object"
+     },
+     "response": {
+      "$ref": "Object"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ]
+    },
+    "rewrite": {
+     "id": "storage.objects.rewrite",
+     "path": "b/{sourceBucket}/o/{sourceObject}/rewriteTo/b/{destinationBucket}/o/{destinationObject}",
+     "httpMethod": "POST",
+     "description": "Rewrites a source object to a destination object. Optionally overrides metadata.",
+     "parameters": {
+      "destinationBucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to store the new object. Overrides the provided object metadata's bucket value, if any.",
+       "required": true,
+       "location": "path"
+      },
+      "destinationObject": {
+       "type": "string",
+       "description": "Name of the new object. Required when the object metadata is not otherwise provided. Overrides the object metadata's name value, if any. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      },
+      "destinationPredefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to the destination object.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the destination object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifSourceMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the source object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "maxBytesRewrittenPerCall": {
+       "type": "string",
+       "description": "The maximum number of bytes that will be rewritten per rewrite request. Most callers shouldn't need to specify this parameter - it is primarily in place to support testing. If specified the value must be an integral multiple of 1 MiB (1048576). Also, this only applies to requests where the source and destination span locations and/or storage classes. Finally, this value must not change across rewrite calls else you'll get an error that the rewriteToken is invalid.",
+       "format": "int64",
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl, unless the object resource specifies the acl property, when it defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      },
+      "rewriteToken": {
+       "type": "string",
+       "description": "Include this field (from the previous rewrite response) on each rewrite request after the first one, until the rewrite response 'done' flag is true. Calls that provide a rewriteToken can omit all other request fields, but if included those fields must match the values provided in the first rewrite request.",
+       "location": "query"
+      },
+      "sourceBucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to find the source object.",
+       "required": true,
+       "location": "path"
+      },
+      "sourceGeneration": {
+       "type": "string",
+       "description": "If present, selects a specific revision of the source object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "sourceObject": {
+       "type": "string",
+       "description": "Name of the source object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      }
+     },
+     "parameterOrder": [
+      "sourceBucket",
+      "sourceObject",
+      "destinationBucket",
+      "destinationObject"
+     ],
+     "request": {
+      "$ref": "Object"
+     },
+     "response": {
+      "$ref": "RewriteResponse"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ]
+    },
+    "update": {
+     "id": "storage.objects.update",
+     "path": "b/{bucket}/o/{object}",
+     "httpMethod": "PUT",
+     "description": "Updates an object's metadata.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which the object resides.",
+       "required": true,
+       "location": "path"
+      },
+      "generation": {
+       "type": "string",
+       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifGenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "ifMetagenerationNotMatch": {
+       "type": "string",
+       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+       "format": "int64",
+       "location": "query"
+      },
+      "object": {
+       "type": "string",
+       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+       "required": true,
+       "location": "path"
+      },
+      "predefinedAcl": {
+       "type": "string",
+       "description": "Apply a predefined set of access controls to this object.",
+       "enum": [
+        "authenticatedRead",
+        "bucketOwnerFullControl",
+        "bucketOwnerRead",
+        "private",
+        "projectPrivate",
+        "publicRead"
+       ],
+       "enumDescriptions": [
+        "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+        "Object owner gets OWNER access, and project team owners get OWNER access.",
+        "Object owner gets OWNER access, and project team owners get READER access.",
+        "Object owner gets OWNER access.",
+        "Object owner gets OWNER access, and project team members get access according to their roles.",
+        "Object owner gets OWNER access, and allUsers get READER access."
+       ],
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to full.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket",
+      "object"
+     ],
+     "request": {
+      "$ref": "Object"
+     },
+     "response": {
+      "$ref": "Object"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/devstorage.full_control"
+     ],
+     "supportsMediaDownload": true,
+     "useMediaDownloadService": true
+    },
+    "watchAll": {
+     "id": "storage.objects.watchAll",
+     "path": "b/{bucket}/o/watch",
+     "httpMethod": "POST",
+     "description": "Watch for changes on all objects in a bucket.",
+     "parameters": {
+      "bucket": {
+       "type": "string",
+       "description": "Name of the bucket in which to look for objects.",
+       "required": true,
+       "location": "path"
+      },
+      "delimiter": {
+       "type": "string",
+       "description": "Returns results in a directory-like mode. items will contain only objects whose names, aside from the prefix, do not contain delimiter. Objects whose names, aside from the prefix, contain delimiter will have their name, truncated after the delimiter, returned in prefixes. Duplicate prefixes are omitted.",
+       "location": "query"
+      },
+      "maxResults": {
+       "type": "integer",
+       "description": "Maximum number of items plus prefixes to return. As duplicate prefixes are omitted, fewer total results may be returned than requested. The default value of this parameter is 1,000 items.",
+       "format": "uint32",
+       "minimum": "0",
+       "location": "query"
+      },
+      "pageToken": {
+       "type": "string",
+       "description": "A previously-returned page token representing part of the larger set of results to view.",
+       "location": "query"
+      },
+      "prefix": {
+       "type": "string",
+       "description": "Filter results to objects whose names begin with this prefix.",
+       "location": "query"
+      },
+      "projection": {
+       "type": "string",
+       "description": "Set of properties to return. Defaults to noAcl.",
+       "enum": [
+        "full",
+        "noAcl"
+       ],
+       "enumDescriptions": [
+        "Include all properties.",
+        "Omit the owner, acl property."
+       ],
+       "location": "query"
+      },
+      "versions": {
+       "type": "boolean",
+       "description": "If true, lists all versions of an object as distinct results. The default is false. For more information, see Object Versioning.",
+       "location": "query"
+      }
+     },
+     "parameterOrder": [
+      "bucket"
+     ],
+     "request": {
+      "$ref": "Channel",
+      "parameterName": "resource"
+     },
+     "response": {
+      "$ref": "Channel"
+     },
+     "scopes": [
+      "https://www.googleapis.com/auth/cloud-platform",
+      "https://www.googleapis.com/auth/cloud-platform.read-only",
+      "https://www.googleapis.com/auth/devstorage.full_control",
+      "https://www.googleapis.com/auth/devstorage.read_only",
+      "https://www.googleapis.com/auth/devstorage.read_write"
+     ],
+     "supportsSubscription": true
+    }
+   }
+  }
+ }
+}
diff --git a/vendor/google.golang.org/api/storage/v1/storage-gen.go b/vendor/google.golang.org/api/storage/v1/storage-gen.go
new file mode 100644
index 0000000..323c9ca
--- /dev/null
+++ b/vendor/google.golang.org/api/storage/v1/storage-gen.go
@@ -0,0 +1,7740 @@
+// Package storage provides access to the Cloud Storage JSON API.
+//
+// See https://developers.google.com/storage/docs/json_api/
+//
+// Usage example:
+//
+//   import "google.golang.org/api/storage/v1"
+//   ...
+//   storageService, err := storage.New(oauthHttpClient)
+package storage // import "google.golang.org/api/storage/v1"
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	context "golang.org/x/net/context"
+	ctxhttp "golang.org/x/net/context/ctxhttp"
+	gensupport "google.golang.org/api/gensupport"
+	googleapi "google.golang.org/api/googleapi"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+// Always reference these packages, just in case the auto-generated code
+// below doesn't.
+var _ = bytes.NewBuffer
+var _ = strconv.Itoa
+var _ = fmt.Sprintf
+var _ = json.NewDecoder
+var _ = io.Copy
+var _ = url.Parse
+var _ = gensupport.MarshalJSON
+var _ = googleapi.Version
+var _ = errors.New
+var _ = strings.Replace
+var _ = context.Canceled
+var _ = ctxhttp.Do
+
+const apiId = "storage:v1"
+const apiName = "storage"
+const apiVersion = "v1"
+const basePath = "https://www.googleapis.com/storage/v1/"
+
+// OAuth2 scopes used by this API.
+const (
+	// View and manage your data across Google Cloud Platform services
+	CloudPlatformScope = "https://www.googleapis.com/auth/cloud-platform"
+
+	// View your data across Google Cloud Platform services
+	CloudPlatformReadOnlyScope = "https://www.googleapis.com/auth/cloud-platform.read-only"
+
+	// Manage your data and permissions in Google Cloud Storage
+	DevstorageFullControlScope = "https://www.googleapis.com/auth/devstorage.full_control"
+
+	// View your data in Google Cloud Storage
+	DevstorageReadOnlyScope = "https://www.googleapis.com/auth/devstorage.read_only"
+
+	// Manage your data in Google Cloud Storage
+	DevstorageReadWriteScope = "https://www.googleapis.com/auth/devstorage.read_write"
+)
+
+func New(client *http.Client) (*Service, error) {
+	if client == nil {
+		return nil, errors.New("client is nil")
+	}
+	s := &Service{client: client, BasePath: basePath}
+	s.BucketAccessControls = NewBucketAccessControlsService(s)
+	s.Buckets = NewBucketsService(s)
+	s.Channels = NewChannelsService(s)
+	s.DefaultObjectAccessControls = NewDefaultObjectAccessControlsService(s)
+	s.ObjectAccessControls = NewObjectAccessControlsService(s)
+	s.Objects = NewObjectsService(s)
+	return s, nil
+}
+
+type Service struct {
+	client    *http.Client
+	BasePath  string // API endpoint base URL
+	UserAgent string // optional additional User-Agent fragment
+
+	BucketAccessControls *BucketAccessControlsService
+
+	Buckets *BucketsService
+
+	Channels *ChannelsService
+
+	DefaultObjectAccessControls *DefaultObjectAccessControlsService
+
+	ObjectAccessControls *ObjectAccessControlsService
+
+	Objects *ObjectsService
+}
+
+func (s *Service) userAgent() string {
+	if s.UserAgent == "" {
+		return googleapi.UserAgent
+	}
+	return googleapi.UserAgent + " " + s.UserAgent
+}
+
+func NewBucketAccessControlsService(s *Service) *BucketAccessControlsService {
+	rs := &BucketAccessControlsService{s: s}
+	return rs
+}
+
+type BucketAccessControlsService struct {
+	s *Service
+}
+
+func NewBucketsService(s *Service) *BucketsService {
+	rs := &BucketsService{s: s}
+	return rs
+}
+
+type BucketsService struct {
+	s *Service
+}
+
+func NewChannelsService(s *Service) *ChannelsService {
+	rs := &ChannelsService{s: s}
+	return rs
+}
+
+type ChannelsService struct {
+	s *Service
+}
+
+func NewDefaultObjectAccessControlsService(s *Service) *DefaultObjectAccessControlsService {
+	rs := &DefaultObjectAccessControlsService{s: s}
+	return rs
+}
+
+type DefaultObjectAccessControlsService struct {
+	s *Service
+}
+
+func NewObjectAccessControlsService(s *Service) *ObjectAccessControlsService {
+	rs := &ObjectAccessControlsService{s: s}
+	return rs
+}
+
+type ObjectAccessControlsService struct {
+	s *Service
+}
+
+func NewObjectsService(s *Service) *ObjectsService {
+	rs := &ObjectsService{s: s}
+	return rs
+}
+
+type ObjectsService struct {
+	s *Service
+}
+
+// Bucket: A bucket.
+type Bucket struct {
+	// Acl: Access controls on the bucket.
+	Acl []*BucketAccessControl `json:"acl,omitempty"`
+
+	// Cors: The bucket's Cross-Origin Resource Sharing (CORS)
+	// configuration.
+	Cors []*BucketCors `json:"cors,omitempty"`
+
+	// DefaultObjectAcl: Default access controls to apply to new objects
+	// when no ACL is provided.
+	DefaultObjectAcl []*ObjectAccessControl `json:"defaultObjectAcl,omitempty"`
+
+	// Etag: HTTP 1.1 Entity tag for the bucket.
+	Etag string `json:"etag,omitempty"`
+
+	// Id: The ID of the bucket.
+	Id string `json:"id,omitempty"`
+
+	// Kind: The kind of item this is. For buckets, this is always
+	// storage#bucket.
+	Kind string `json:"kind,omitempty"`
+
+	// Lifecycle: The bucket's lifecycle configuration. See lifecycle
+	// management for more information.
+	Lifecycle *BucketLifecycle `json:"lifecycle,omitempty"`
+
+	// Location: The location of the bucket. Object data for objects in the
+	// bucket resides in physical storage within this region. Defaults to
+	// US. See the developer's guide for the authoritative list.
+	Location string `json:"location,omitempty"`
+
+	// Logging: The bucket's logging configuration, which defines the
+	// destination bucket and optional name prefix for the current bucket's
+	// logs.
+	Logging *BucketLogging `json:"logging,omitempty"`
+
+	// Metageneration: The metadata generation of this bucket.
+	Metageneration int64 `json:"metageneration,omitempty,string"`
+
+	// Name: The name of the bucket.
+	Name string `json:"name,omitempty"`
+
+	// Owner: The owner of the bucket. This is always the project team's
+	// owner group.
+	Owner *BucketOwner `json:"owner,omitempty"`
+
+	// ProjectNumber: The project number of the project the bucket belongs
+	// to.
+	ProjectNumber uint64 `json:"projectNumber,omitempty,string"`
+
+	// SelfLink: The URI of this bucket.
+	SelfLink string `json:"selfLink,omitempty"`
+
+	// StorageClass: The bucket's storage class. This defines how objects in
+	// the bucket are stored and determines the SLA and the cost of storage.
+	// Values include STANDARD, NEARLINE and DURABLE_REDUCED_AVAILABILITY.
+	// Defaults to STANDARD. For more information, see storage classes.
+	StorageClass string `json:"storageClass,omitempty"`
+
+	// TimeCreated: The creation time of the bucket in RFC 3339 format.
+	TimeCreated string `json:"timeCreated,omitempty"`
+
+	// Updated: The modification time of the bucket in RFC 3339 format.
+	Updated string `json:"updated,omitempty"`
+
+	// Versioning: The bucket's versioning configuration.
+	Versioning *BucketVersioning `json:"versioning,omitempty"`
+
+	// Website: The bucket's website configuration.
+	Website *BucketWebsite `json:"website,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Acl") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *Bucket) MarshalJSON() ([]byte, error) {
+	type noMethod Bucket
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+type BucketCors struct {
+	// MaxAgeSeconds: The value, in seconds, to return in the
+	// Access-Control-Max-Age header used in preflight responses.
+	MaxAgeSeconds int64 `json:"maxAgeSeconds,omitempty"`
+
+	// Method: The list of HTTP methods on which to include CORS response
+	// headers, (GET, OPTIONS, POST, etc) Note: "*" is permitted in the list
+	// of methods, and means "any method".
+	Method []string `json:"method,omitempty"`
+
+	// Origin: The list of Origins eligible to receive CORS response
+	// headers. Note: "*" is permitted in the list of origins, and means
+	// "any Origin".
+	Origin []string `json:"origin,omitempty"`
+
+	// ResponseHeader: The list of HTTP headers other than the simple
+	// response headers to give permission for the user-agent to share
+	// across domains.
+	ResponseHeader []string `json:"responseHeader,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "MaxAgeSeconds") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketCors) MarshalJSON() ([]byte, error) {
+	type noMethod BucketCors
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketLifecycle: The bucket's lifecycle configuration. See lifecycle
+// management for more information.
+type BucketLifecycle struct {
+	// Rule: A lifecycle management rule, which is made of an action to take
+	// and the condition(s) under which the action will be taken.
+	Rule []*BucketLifecycleRule `json:"rule,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Rule") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketLifecycle) MarshalJSON() ([]byte, error) {
+	type noMethod BucketLifecycle
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+type BucketLifecycleRule struct {
+	// Action: The action to take.
+	Action *BucketLifecycleRuleAction `json:"action,omitempty"`
+
+	// Condition: The condition(s) under which the action will be taken.
+	Condition *BucketLifecycleRuleCondition `json:"condition,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Action") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketLifecycleRule) MarshalJSON() ([]byte, error) {
+	type noMethod BucketLifecycleRule
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketLifecycleRuleAction: The action to take.
+type BucketLifecycleRuleAction struct {
+	// Type: Type of the action. Currently, only Delete is supported.
+	Type string `json:"type,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Type") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketLifecycleRuleAction) MarshalJSON() ([]byte, error) {
+	type noMethod BucketLifecycleRuleAction
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketLifecycleRuleCondition: The condition(s) under which the action
+// will be taken.
+type BucketLifecycleRuleCondition struct {
+	// Age: Age of an object (in days). This condition is satisfied when an
+	// object reaches the specified age.
+	Age int64 `json:"age,omitempty"`
+
+	// CreatedBefore: A date in RFC 3339 format with only the date part (for
+	// instance, "2013-01-15"). This condition is satisfied when an object
+	// is created before midnight of the specified date in UTC.
+	CreatedBefore string `json:"createdBefore,omitempty"`
+
+	// IsLive: Relevant only for versioned objects. If the value is true,
+	// this condition matches live objects; if the value is false, it
+	// matches archived objects.
+	IsLive bool `json:"isLive,omitempty"`
+
+	// NumNewerVersions: Relevant only for versioned objects. If the value
+	// is N, this condition is satisfied when there are at least N versions
+	// (including the live version) newer than this version of the object.
+	NumNewerVersions int64 `json:"numNewerVersions,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Age") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketLifecycleRuleCondition) MarshalJSON() ([]byte, error) {
+	type noMethod BucketLifecycleRuleCondition
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketLogging: The bucket's logging configuration, which defines the
+// destination bucket and optional name prefix for the current bucket's
+// logs.
+type BucketLogging struct {
+	// LogBucket: The destination bucket where the current bucket's logs
+	// should be placed.
+	LogBucket string `json:"logBucket,omitempty"`
+
+	// LogObjectPrefix: A prefix for log object names.
+	LogObjectPrefix string `json:"logObjectPrefix,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "LogBucket") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketLogging) MarshalJSON() ([]byte, error) {
+	type noMethod BucketLogging
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketOwner: The owner of the bucket. This is always the project
+// team's owner group.
+type BucketOwner struct {
+	// Entity: The entity, in the form project-owner-projectId.
+	Entity string `json:"entity,omitempty"`
+
+	// EntityId: The ID for the entity.
+	EntityId string `json:"entityId,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Entity") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketOwner) MarshalJSON() ([]byte, error) {
+	type noMethod BucketOwner
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketVersioning: The bucket's versioning configuration.
+type BucketVersioning struct {
+	// Enabled: While set to true, versioning is fully enabled for this
+	// bucket.
+	Enabled bool `json:"enabled,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Enabled") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketVersioning) MarshalJSON() ([]byte, error) {
+	type noMethod BucketVersioning
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketWebsite: The bucket's website configuration.
+type BucketWebsite struct {
+	// MainPageSuffix: Behaves as the bucket's directory index where missing
+	// objects are treated as potential directories.
+	MainPageSuffix string `json:"mainPageSuffix,omitempty"`
+
+	// NotFoundPage: The custom object to return when a requested resource
+	// is not found.
+	NotFoundPage string `json:"notFoundPage,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "MainPageSuffix") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketWebsite) MarshalJSON() ([]byte, error) {
+	type noMethod BucketWebsite
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketAccessControl: An access-control entry.
+type BucketAccessControl struct {
+	// Bucket: The name of the bucket.
+	Bucket string `json:"bucket,omitempty"`
+
+	// Domain: The domain associated with the entity, if any.
+	Domain string `json:"domain,omitempty"`
+
+	// Email: The email address associated with the entity, if any.
+	Email string `json:"email,omitempty"`
+
+	// Entity: The entity holding the permission, in one of the following
+	// forms:
+	// - user-userId
+	// - user-email
+	// - group-groupId
+	// - group-email
+	// - domain-domain
+	// - project-team-projectId
+	// - allUsers
+	// - allAuthenticatedUsers Examples:
+	// - The user liz@example.com would be user-liz@example.com.
+	// - The group example@googlegroups.com would be
+	// group-example@googlegroups.com.
+	// - To refer to all members of the Google Apps for Business domain
+	// example.com, the entity would be domain-example.com.
+	Entity string `json:"entity,omitempty"`
+
+	// EntityId: The ID for the entity, if any.
+	EntityId string `json:"entityId,omitempty"`
+
+	// Etag: HTTP 1.1 Entity tag for the access-control entry.
+	Etag string `json:"etag,omitempty"`
+
+	// Id: The ID of the access-control entry.
+	Id string `json:"id,omitempty"`
+
+	// Kind: The kind of item this is. For bucket access control entries,
+	// this is always storage#bucketAccessControl.
+	Kind string `json:"kind,omitempty"`
+
+	// ProjectTeam: The project team associated with the entity, if any.
+	ProjectTeam *BucketAccessControlProjectTeam `json:"projectTeam,omitempty"`
+
+	// Role: The access permission for the entity. Can be READER, WRITER, or
+	// OWNER.
+	Role string `json:"role,omitempty"`
+
+	// SelfLink: The link to this access-control entry.
+	SelfLink string `json:"selfLink,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Bucket") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketAccessControl) MarshalJSON() ([]byte, error) {
+	type noMethod BucketAccessControl
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketAccessControlProjectTeam: The project team associated with the
+// entity, if any.
+type BucketAccessControlProjectTeam struct {
+	// ProjectNumber: The project number.
+	ProjectNumber string `json:"projectNumber,omitempty"`
+
+	// Team: The team. Can be owners, editors, or viewers.
+	Team string `json:"team,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "ProjectNumber") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketAccessControlProjectTeam) MarshalJSON() ([]byte, error) {
+	type noMethod BucketAccessControlProjectTeam
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// BucketAccessControls: An access-control list.
+type BucketAccessControls struct {
+	// Items: The list of items.
+	Items []*BucketAccessControl `json:"items,omitempty"`
+
+	// Kind: The kind of item this is. For lists of bucket access control
+	// entries, this is always storage#bucketAccessControls.
+	Kind string `json:"kind,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Items") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *BucketAccessControls) MarshalJSON() ([]byte, error) {
+	type noMethod BucketAccessControls
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// Buckets: A list of buckets.
+type Buckets struct {
+	// Items: The list of items.
+	Items []*Bucket `json:"items,omitempty"`
+
+	// Kind: The kind of item this is. For lists of buckets, this is always
+	// storage#buckets.
+	Kind string `json:"kind,omitempty"`
+
+	// NextPageToken: The continuation token, used to page through large
+	// result sets. Provide this value in a subsequent request to return the
+	// next page of results.
+	NextPageToken string `json:"nextPageToken,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Items") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *Buckets) MarshalJSON() ([]byte, error) {
+	type noMethod Buckets
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// Channel: An notification channel used to watch for resource changes.
+type Channel struct {
+	// Address: The address where notifications are delivered for this
+	// channel.
+	Address string `json:"address,omitempty"`
+
+	// Expiration: Date and time of notification channel expiration,
+	// expressed as a Unix timestamp, in milliseconds. Optional.
+	Expiration int64 `json:"expiration,omitempty,string"`
+
+	// Id: A UUID or similar unique string that identifies this channel.
+	Id string `json:"id,omitempty"`
+
+	// Kind: Identifies this as a notification channel used to watch for
+	// changes to a resource. Value: the fixed string "api#channel".
+	Kind string `json:"kind,omitempty"`
+
+	// Params: Additional parameters controlling delivery channel behavior.
+	// Optional.
+	Params map[string]string `json:"params,omitempty"`
+
+	// Payload: A Boolean value to indicate whether payload is wanted.
+	// Optional.
+	Payload bool `json:"payload,omitempty"`
+
+	// ResourceId: An opaque ID that identifies the resource being watched
+	// on this channel. Stable across different API versions.
+	ResourceId string `json:"resourceId,omitempty"`
+
+	// ResourceUri: A version-specific identifier for the watched resource.
+	ResourceUri string `json:"resourceUri,omitempty"`
+
+	// Token: An arbitrary string delivered to the target address with each
+	// notification delivered over this channel. Optional.
+	Token string `json:"token,omitempty"`
+
+	// Type: The type of delivery mechanism used for this channel.
+	Type string `json:"type,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Address") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *Channel) MarshalJSON() ([]byte, error) {
+	type noMethod Channel
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ComposeRequest: A Compose request.
+type ComposeRequest struct {
+	// Destination: Properties of the resulting object.
+	Destination *Object `json:"destination,omitempty"`
+
+	// Kind: The kind of item this is.
+	Kind string `json:"kind,omitempty"`
+
+	// SourceObjects: The list of source objects that will be concatenated
+	// into a single object.
+	SourceObjects []*ComposeRequestSourceObjects `json:"sourceObjects,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Destination") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ComposeRequest) MarshalJSON() ([]byte, error) {
+	type noMethod ComposeRequest
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+type ComposeRequestSourceObjects struct {
+	// Generation: The generation of this object to use as the source.
+	Generation int64 `json:"generation,omitempty,string"`
+
+	// Name: The source object's name. The source object's bucket is
+	// implicitly the destination bucket.
+	Name string `json:"name,omitempty"`
+
+	// ObjectPreconditions: Conditions that must be met for this operation
+	// to execute.
+	ObjectPreconditions *ComposeRequestSourceObjectsObjectPreconditions `json:"objectPreconditions,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Generation") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ComposeRequestSourceObjects) MarshalJSON() ([]byte, error) {
+	type noMethod ComposeRequestSourceObjects
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ComposeRequestSourceObjectsObjectPreconditions: Conditions that must
+// be met for this operation to execute.
+type ComposeRequestSourceObjectsObjectPreconditions struct {
+	// IfGenerationMatch: Only perform the composition if the generation of
+	// the source object that would be used matches this value. If this
+	// value and a generation are both specified, they must be the same
+	// value or the call will fail.
+	IfGenerationMatch int64 `json:"ifGenerationMatch,omitempty,string"`
+
+	// ForceSendFields is a list of field names (e.g. "IfGenerationMatch")
+	// to unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ComposeRequestSourceObjectsObjectPreconditions) MarshalJSON() ([]byte, error) {
+	type noMethod ComposeRequestSourceObjectsObjectPreconditions
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// Object: An object.
+type Object struct {
+	// Acl: Access controls on the object.
+	Acl []*ObjectAccessControl `json:"acl,omitempty"`
+
+	// Bucket: The name of the bucket containing this object.
+	Bucket string `json:"bucket,omitempty"`
+
+	// CacheControl: Cache-Control directive for the object data.
+	CacheControl string `json:"cacheControl,omitempty"`
+
+	// ComponentCount: Number of underlying components that make up this
+	// object. Components are accumulated by compose operations.
+	ComponentCount int64 `json:"componentCount,omitempty"`
+
+	// ContentDisposition: Content-Disposition of the object data.
+	ContentDisposition string `json:"contentDisposition,omitempty"`
+
+	// ContentEncoding: Content-Encoding of the object data.
+	ContentEncoding string `json:"contentEncoding,omitempty"`
+
+	// ContentLanguage: Content-Language of the object data.
+	ContentLanguage string `json:"contentLanguage,omitempty"`
+
+	// ContentType: Content-Type of the object data. If contentType is not
+	// specified, object downloads will be served as
+	// application/octet-stream.
+	ContentType string `json:"contentType,omitempty"`
+
+	// Crc32c: CRC32c checksum, as described in RFC 4960, Appendix B;
+	// encoded using base64 in big-endian byte order. For more information
+	// about using the CRC32c checksum, see Hashes and ETags: Best
+	// Practices.
+	Crc32c string `json:"crc32c,omitempty"`
+
+	// CustomerEncryption: Metadata of customer-supplied encryption key, if
+	// the object is encrypted by such a key.
+	CustomerEncryption *ObjectCustomerEncryption `json:"customerEncryption,omitempty"`
+
+	// Etag: HTTP 1.1 Entity tag for the object.
+	Etag string `json:"etag,omitempty"`
+
+	// Generation: The content generation of this object. Used for object
+	// versioning.
+	Generation int64 `json:"generation,omitempty,string"`
+
+	// Id: The ID of the object.
+	Id string `json:"id,omitempty"`
+
+	// Kind: The kind of item this is. For objects, this is always
+	// storage#object.
+	Kind string `json:"kind,omitempty"`
+
+	// Md5Hash: MD5 hash of the data; encoded using base64. For more
+	// information about using the MD5 hash, see Hashes and ETags: Best
+	// Practices.
+	Md5Hash string `json:"md5Hash,omitempty"`
+
+	// MediaLink: Media download link.
+	MediaLink string `json:"mediaLink,omitempty"`
+
+	// Metadata: User-provided metadata, in key/value pairs.
+	Metadata map[string]string `json:"metadata,omitempty"`
+
+	// Metageneration: The version of the metadata for this object at this
+	// generation. Used for preconditions and for detecting changes in
+	// metadata. A metageneration number is only meaningful in the context
+	// of a particular generation of a particular object.
+	Metageneration int64 `json:"metageneration,omitempty,string"`
+
+	// Name: The name of this object. Required if not specified by URL
+	// parameter.
+	Name string `json:"name,omitempty"`
+
+	// Owner: The owner of the object. This will always be the uploader of
+	// the object.
+	Owner *ObjectOwner `json:"owner,omitempty"`
+
+	// SelfLink: The link to this object.
+	SelfLink string `json:"selfLink,omitempty"`
+
+	// Size: Content-Length of the data in bytes.
+	Size uint64 `json:"size,omitempty,string"`
+
+	// StorageClass: Storage class of the object.
+	StorageClass string `json:"storageClass,omitempty"`
+
+	// TimeCreated: The creation time of the object in RFC 3339 format.
+	TimeCreated string `json:"timeCreated,omitempty"`
+
+	// TimeDeleted: The deletion time of the object in RFC 3339 format. Will
+	// be returned if and only if this version of the object has been
+	// deleted.
+	TimeDeleted string `json:"timeDeleted,omitempty"`
+
+	// Updated: The modification time of the object metadata in RFC 3339
+	// format.
+	Updated string `json:"updated,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Acl") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *Object) MarshalJSON() ([]byte, error) {
+	type noMethod Object
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ObjectCustomerEncryption: Metadata of customer-supplied encryption
+// key, if the object is encrypted by such a key.
+type ObjectCustomerEncryption struct {
+	// EncryptionAlgorithm: The encryption algorithm.
+	EncryptionAlgorithm string `json:"encryptionAlgorithm,omitempty"`
+
+	// KeySha256: SHA256 hash value of the encryption key.
+	KeySha256 string `json:"keySha256,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "EncryptionAlgorithm")
+	// to unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ObjectCustomerEncryption) MarshalJSON() ([]byte, error) {
+	type noMethod ObjectCustomerEncryption
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ObjectOwner: The owner of the object. This will always be the
+// uploader of the object.
+type ObjectOwner struct {
+	// Entity: The entity, in the form user-userId.
+	Entity string `json:"entity,omitempty"`
+
+	// EntityId: The ID for the entity.
+	EntityId string `json:"entityId,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "Entity") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ObjectOwner) MarshalJSON() ([]byte, error) {
+	type noMethod ObjectOwner
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ObjectAccessControl: An access-control entry.
+type ObjectAccessControl struct {
+	// Bucket: The name of the bucket.
+	Bucket string `json:"bucket,omitempty"`
+
+	// Domain: The domain associated with the entity, if any.
+	Domain string `json:"domain,omitempty"`
+
+	// Email: The email address associated with the entity, if any.
+	Email string `json:"email,omitempty"`
+
+	// Entity: The entity holding the permission, in one of the following
+	// forms:
+	// - user-userId
+	// - user-email
+	// - group-groupId
+	// - group-email
+	// - domain-domain
+	// - project-team-projectId
+	// - allUsers
+	// - allAuthenticatedUsers Examples:
+	// - The user liz@example.com would be user-liz@example.com.
+	// - The group example@googlegroups.com would be
+	// group-example@googlegroups.com.
+	// - To refer to all members of the Google Apps for Business domain
+	// example.com, the entity would be domain-example.com.
+	Entity string `json:"entity,omitempty"`
+
+	// EntityId: The ID for the entity, if any.
+	EntityId string `json:"entityId,omitempty"`
+
+	// Etag: HTTP 1.1 Entity tag for the access-control entry.
+	Etag string `json:"etag,omitempty"`
+
+	// Generation: The content generation of the object.
+	Generation int64 `json:"generation,omitempty,string"`
+
+	// Id: The ID of the access-control entry.
+	Id string `json:"id,omitempty"`
+
+	// Kind: The kind of item this is. For object access control entries,
+	// this is always storage#objectAccessControl.
+	Kind string `json:"kind,omitempty"`
+
+	// Object: The name of the object.
+	Object string `json:"object,omitempty"`
+
+	// ProjectTeam: The project team associated with the entity, if any.
+	ProjectTeam *ObjectAccessControlProjectTeam `json:"projectTeam,omitempty"`
+
+	// Role: The access permission for the entity. Can be READER or OWNER.
+	Role string `json:"role,omitempty"`
+
+	// SelfLink: The link to this access-control entry.
+	SelfLink string `json:"selfLink,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Bucket") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ObjectAccessControl) MarshalJSON() ([]byte, error) {
+	type noMethod ObjectAccessControl
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ObjectAccessControlProjectTeam: The project team associated with the
+// entity, if any.
+type ObjectAccessControlProjectTeam struct {
+	// ProjectNumber: The project number.
+	ProjectNumber string `json:"projectNumber,omitempty"`
+
+	// Team: The team. Can be owners, editors, or viewers.
+	Team string `json:"team,omitempty"`
+
+	// ForceSendFields is a list of field names (e.g. "ProjectNumber") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ObjectAccessControlProjectTeam) MarshalJSON() ([]byte, error) {
+	type noMethod ObjectAccessControlProjectTeam
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// ObjectAccessControls: An access-control list.
+type ObjectAccessControls struct {
+	// Items: The list of items.
+	Items []interface{} `json:"items,omitempty"`
+
+	// Kind: The kind of item this is. For lists of object access control
+	// entries, this is always storage#objectAccessControls.
+	Kind string `json:"kind,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Items") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *ObjectAccessControls) MarshalJSON() ([]byte, error) {
+	type noMethod ObjectAccessControls
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// Objects: A list of objects.
+type Objects struct {
+	// Items: The list of items.
+	Items []*Object `json:"items,omitempty"`
+
+	// Kind: The kind of item this is. For lists of objects, this is always
+	// storage#objects.
+	Kind string `json:"kind,omitempty"`
+
+	// NextPageToken: The continuation token, used to page through large
+	// result sets. Provide this value in a subsequent request to return the
+	// next page of results.
+	NextPageToken string `json:"nextPageToken,omitempty"`
+
+	// Prefixes: The list of prefixes of objects matching-but-not-listed up
+	// to and including the requested delimiter.
+	Prefixes []string `json:"prefixes,omitempty"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Items") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *Objects) MarshalJSON() ([]byte, error) {
+	type noMethod Objects
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// RewriteResponse: A rewrite response.
+type RewriteResponse struct {
+	// Done: true if the copy is finished; otherwise, false if the copy is
+	// in progress. This property is always present in the response.
+	Done bool `json:"done,omitempty"`
+
+	// Kind: The kind of item this is.
+	Kind string `json:"kind,omitempty"`
+
+	// ObjectSize: The total size of the object being copied in bytes. This
+	// property is always present in the response.
+	ObjectSize uint64 `json:"objectSize,omitempty,string"`
+
+	// Resource: A resource containing the metadata for the copied-to
+	// object. This property is present in the response only when copying
+	// completes.
+	Resource *Object `json:"resource,omitempty"`
+
+	// RewriteToken: A token to use in subsequent requests to continue
+	// copying data. This token is present in the response only when there
+	// is more data to copy.
+	RewriteToken string `json:"rewriteToken,omitempty"`
+
+	// TotalBytesRewritten: The total bytes written so far, which can be
+	// used to provide a waiting user with a progress indicator. This
+	// property is always present in the response.
+	TotalBytesRewritten uint64 `json:"totalBytesRewritten,omitempty,string"`
+
+	// ServerResponse contains the HTTP response code and headers from the
+	// server.
+	googleapi.ServerResponse `json:"-"`
+
+	// ForceSendFields is a list of field names (e.g. "Done") to
+	// unconditionally include in API requests. By default, fields with
+	// empty values are omitted from API requests. However, any non-pointer,
+	// non-interface field appearing in ForceSendFields will be sent to the
+	// server regardless of whether the field is empty or not. This may be
+	// used to include empty fields in Patch requests.
+	ForceSendFields []string `json:"-"`
+}
+
+func (s *RewriteResponse) MarshalJSON() ([]byte, error) {
+	type noMethod RewriteResponse
+	raw := noMethod(*s)
+	return gensupport.MarshalJSON(raw, s.ForceSendFields)
+}
+
+// method id "storage.bucketAccessControls.delete":
+
+type BucketAccessControlsDeleteCall struct {
+	s          *Service
+	bucket     string
+	entity     string
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Delete: Permanently deletes the ACL entry for the specified entity on
+// the specified bucket.
+func (r *BucketAccessControlsService) Delete(bucket string, entity string) *BucketAccessControlsDeleteCall {
+	c := &BucketAccessControlsDeleteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketAccessControlsDeleteCall) Fields(s ...googleapi.Field) *BucketAccessControlsDeleteCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketAccessControlsDeleteCall) Context(ctx context.Context) *BucketAccessControlsDeleteCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketAccessControlsDeleteCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("DELETE", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.bucketAccessControls.delete" call.
+func (c *BucketAccessControlsDeleteCall) Do(opts ...googleapi.CallOption) error {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if err != nil {
+		return err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return err
+	}
+	return nil
+	// {
+	//   "description": "Permanently deletes the ACL entry for the specified entity on the specified bucket.",
+	//   "httpMethod": "DELETE",
+	//   "id": "storage.bucketAccessControls.delete",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/acl/{entity}",
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.bucketAccessControls.get":
+
+type BucketAccessControlsGetCall struct {
+	s            *Service
+	bucket       string
+	entity       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// Get: Returns the ACL entry for the specified entity on the specified
+// bucket.
+func (r *BucketAccessControlsService) Get(bucket string, entity string) *BucketAccessControlsGetCall {
+	c := &BucketAccessControlsGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketAccessControlsGetCall) Fields(s ...googleapi.Field) *BucketAccessControlsGetCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *BucketAccessControlsGetCall) IfNoneMatch(entityTag string) *BucketAccessControlsGetCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketAccessControlsGetCall) Context(ctx context.Context) *BucketAccessControlsGetCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketAccessControlsGetCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.bucketAccessControls.get" call.
+// Exactly one of *BucketAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *BucketAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *BucketAccessControlsGetCall) Do(opts ...googleapi.CallOption) (*BucketAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &BucketAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Returns the ACL entry for the specified entity on the specified bucket.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.bucketAccessControls.get",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/acl/{entity}",
+	//   "response": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.bucketAccessControls.insert":
+
+type BucketAccessControlsInsertCall struct {
+	s                   *Service
+	bucket              string
+	bucketaccesscontrol *BucketAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Insert: Creates a new ACL entry on the specified bucket.
+func (r *BucketAccessControlsService) Insert(bucket string, bucketaccesscontrol *BucketAccessControl) *BucketAccessControlsInsertCall {
+	c := &BucketAccessControlsInsertCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.bucketaccesscontrol = bucketaccesscontrol
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketAccessControlsInsertCall) Fields(s ...googleapi.Field) *BucketAccessControlsInsertCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketAccessControlsInsertCall) Context(ctx context.Context) *BucketAccessControlsInsertCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketAccessControlsInsertCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucketaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.bucketAccessControls.insert" call.
+// Exactly one of *BucketAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *BucketAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *BucketAccessControlsInsertCall) Do(opts ...googleapi.CallOption) (*BucketAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &BucketAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Creates a new ACL entry on the specified bucket.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.bucketAccessControls.insert",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/acl",
+	//   "request": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.bucketAccessControls.list":
+
+type BucketAccessControlsListCall struct {
+	s            *Service
+	bucket       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// List: Retrieves ACL entries on the specified bucket.
+func (r *BucketAccessControlsService) List(bucket string) *BucketAccessControlsListCall {
+	c := &BucketAccessControlsListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketAccessControlsListCall) Fields(s ...googleapi.Field) *BucketAccessControlsListCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *BucketAccessControlsListCall) IfNoneMatch(entityTag string) *BucketAccessControlsListCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketAccessControlsListCall) Context(ctx context.Context) *BucketAccessControlsListCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketAccessControlsListCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.bucketAccessControls.list" call.
+// Exactly one of *BucketAccessControls or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *BucketAccessControls.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *BucketAccessControlsListCall) Do(opts ...googleapi.CallOption) (*BucketAccessControls, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &BucketAccessControls{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Retrieves ACL entries on the specified bucket.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.bucketAccessControls.list",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/acl",
+	//   "response": {
+	//     "$ref": "BucketAccessControls"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.bucketAccessControls.patch":
+
+type BucketAccessControlsPatchCall struct {
+	s                   *Service
+	bucket              string
+	entity              string
+	bucketaccesscontrol *BucketAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Patch: Updates an ACL entry on the specified bucket. This method
+// supports patch semantics.
+func (r *BucketAccessControlsService) Patch(bucket string, entity string, bucketaccesscontrol *BucketAccessControl) *BucketAccessControlsPatchCall {
+	c := &BucketAccessControlsPatchCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	c.bucketaccesscontrol = bucketaccesscontrol
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketAccessControlsPatchCall) Fields(s ...googleapi.Field) *BucketAccessControlsPatchCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketAccessControlsPatchCall) Context(ctx context.Context) *BucketAccessControlsPatchCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketAccessControlsPatchCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucketaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PATCH", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.bucketAccessControls.patch" call.
+// Exactly one of *BucketAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *BucketAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *BucketAccessControlsPatchCall) Do(opts ...googleapi.CallOption) (*BucketAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &BucketAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates an ACL entry on the specified bucket. This method supports patch semantics.",
+	//   "httpMethod": "PATCH",
+	//   "id": "storage.bucketAccessControls.patch",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/acl/{entity}",
+	//   "request": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.bucketAccessControls.update":
+
+type BucketAccessControlsUpdateCall struct {
+	s                   *Service
+	bucket              string
+	entity              string
+	bucketaccesscontrol *BucketAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Update: Updates an ACL entry on the specified bucket.
+func (r *BucketAccessControlsService) Update(bucket string, entity string, bucketaccesscontrol *BucketAccessControl) *BucketAccessControlsUpdateCall {
+	c := &BucketAccessControlsUpdateCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	c.bucketaccesscontrol = bucketaccesscontrol
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketAccessControlsUpdateCall) Fields(s ...googleapi.Field) *BucketAccessControlsUpdateCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketAccessControlsUpdateCall) Context(ctx context.Context) *BucketAccessControlsUpdateCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketAccessControlsUpdateCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucketaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PUT", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.bucketAccessControls.update" call.
+// Exactly one of *BucketAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *BucketAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *BucketAccessControlsUpdateCall) Do(opts ...googleapi.CallOption) (*BucketAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &BucketAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates an ACL entry on the specified bucket.",
+	//   "httpMethod": "PUT",
+	//   "id": "storage.bucketAccessControls.update",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/acl/{entity}",
+	//   "request": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "BucketAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.buckets.delete":
+
+type BucketsDeleteCall struct {
+	s          *Service
+	bucket     string
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Delete: Permanently deletes an empty bucket.
+func (r *BucketsService) Delete(bucket string) *BucketsDeleteCall {
+	c := &BucketsDeleteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": If set, only deletes the bucket if its
+// metageneration matches this value.
+func (c *BucketsDeleteCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *BucketsDeleteCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": If set, only deletes the bucket if its
+// metageneration does not match this value.
+func (c *BucketsDeleteCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *BucketsDeleteCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketsDeleteCall) Fields(s ...googleapi.Field) *BucketsDeleteCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketsDeleteCall) Context(ctx context.Context) *BucketsDeleteCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketsDeleteCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("DELETE", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.buckets.delete" call.
+func (c *BucketsDeleteCall) Do(opts ...googleapi.CallOption) error {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if err != nil {
+		return err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return err
+	}
+	return nil
+	// {
+	//   "description": "Permanently deletes an empty bucket.",
+	//   "httpMethod": "DELETE",
+	//   "id": "storage.buckets.delete",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "If set, only deletes the bucket if its metageneration matches this value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "If set, only deletes the bucket if its metageneration does not match this value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}",
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// method id "storage.buckets.get":
+
+type BucketsGetCall struct {
+	s            *Service
+	bucket       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// Get: Returns metadata for the specified bucket.
+func (r *BucketsService) Get(bucket string) *BucketsGetCall {
+	c := &BucketsGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the return of the bucket metadata
+// conditional on whether the bucket's current metageneration matches
+// the given value.
+func (c *BucketsGetCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *BucketsGetCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the return of the bucket metadata
+// conditional on whether the bucket's current metageneration does not
+// match the given value.
+func (c *BucketsGetCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *BucketsGetCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit owner, acl and defaultObjectAcl properties.
+func (c *BucketsGetCall) Projection(projection string) *BucketsGetCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketsGetCall) Fields(s ...googleapi.Field) *BucketsGetCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *BucketsGetCall) IfNoneMatch(entityTag string) *BucketsGetCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketsGetCall) Context(ctx context.Context) *BucketsGetCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketsGetCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.buckets.get" call.
+// Exactly one of *Bucket or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Bucket.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *BucketsGetCall) Do(opts ...googleapi.CallOption) (*Bucket, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Bucket{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Returns metadata for the specified bucket.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.buckets.get",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit owner, acl and defaultObjectAcl properties."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}",
+	//   "response": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/cloud-platform.read-only",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_only",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// method id "storage.buckets.insert":
+
+type BucketsInsertCall struct {
+	s          *Service
+	bucket     *Bucket
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Insert: Creates a new bucket.
+func (r *BucketsService) Insert(projectid string, bucket *Bucket) *BucketsInsertCall {
+	c := &BucketsInsertCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.urlParams_.Set("project", projectid)
+	c.bucket = bucket
+	return c
+}
+
+// PredefinedAcl sets the optional parameter "predefinedAcl": Apply a
+// predefined set of access controls to this bucket.
+//
+// Possible values:
+//   "authenticatedRead" - Project team owners get OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "private" - Project team owners get OWNER access.
+//   "projectPrivate" - Project team members get access according to
+// their roles.
+//   "publicRead" - Project team owners get OWNER access, and allUsers
+// get READER access.
+//   "publicReadWrite" - Project team owners get OWNER access, and
+// allUsers get WRITER access.
+func (c *BucketsInsertCall) PredefinedAcl(predefinedAcl string) *BucketsInsertCall {
+	c.urlParams_.Set("predefinedAcl", predefinedAcl)
+	return c
+}
+
+// PredefinedDefaultObjectAcl sets the optional parameter
+// "predefinedDefaultObjectAcl": Apply a predefined set of default
+// object access controls to this bucket.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *BucketsInsertCall) PredefinedDefaultObjectAcl(predefinedDefaultObjectAcl string) *BucketsInsertCall {
+	c.urlParams_.Set("predefinedDefaultObjectAcl", predefinedDefaultObjectAcl)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl, unless the bucket resource
+// specifies acl or defaultObjectAcl properties, when it defaults to
+// full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit owner, acl and defaultObjectAcl properties.
+func (c *BucketsInsertCall) Projection(projection string) *BucketsInsertCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketsInsertCall) Fields(s ...googleapi.Field) *BucketsInsertCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketsInsertCall) Context(ctx context.Context) *BucketsInsertCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketsInsertCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucket)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.SetOpaque(req.URL)
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.buckets.insert" call.
+// Exactly one of *Bucket or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Bucket.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *BucketsInsertCall) Do(opts ...googleapi.CallOption) (*Bucket, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Bucket{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Creates a new bucket.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.buckets.insert",
+	//   "parameterOrder": [
+	//     "project"
+	//   ],
+	//   "parameters": {
+	//     "predefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to this bucket.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead",
+	//         "publicReadWrite"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Project team owners get OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Project team owners get OWNER access.",
+	//         "Project team members get access according to their roles.",
+	//         "Project team owners get OWNER access, and allUsers get READER access.",
+	//         "Project team owners get OWNER access, and allUsers get WRITER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "predefinedDefaultObjectAcl": {
+	//       "description": "Apply a predefined set of default object access controls to this bucket.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "project": {
+	//       "description": "A valid API project identifier.",
+	//       "location": "query",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl, unless the bucket resource specifies acl or defaultObjectAcl properties, when it defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit owner, acl and defaultObjectAcl properties."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b",
+	//   "request": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "response": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// method id "storage.buckets.list":
+
+type BucketsListCall struct {
+	s            *Service
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// List: Retrieves a list of buckets for a given project.
+func (r *BucketsService) List(projectid string) *BucketsListCall {
+	c := &BucketsListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.urlParams_.Set("project", projectid)
+	return c
+}
+
+// MaxResults sets the optional parameter "maxResults": Maximum number
+// of buckets to return.
+func (c *BucketsListCall) MaxResults(maxResults int64) *BucketsListCall {
+	c.urlParams_.Set("maxResults", fmt.Sprint(maxResults))
+	return c
+}
+
+// PageToken sets the optional parameter "pageToken": A
+// previously-returned page token representing part of the larger set of
+// results to view.
+func (c *BucketsListCall) PageToken(pageToken string) *BucketsListCall {
+	c.urlParams_.Set("pageToken", pageToken)
+	return c
+}
+
+// Prefix sets the optional parameter "prefix": Filter results to
+// buckets whose names begin with this prefix.
+func (c *BucketsListCall) Prefix(prefix string) *BucketsListCall {
+	c.urlParams_.Set("prefix", prefix)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit owner, acl and defaultObjectAcl properties.
+func (c *BucketsListCall) Projection(projection string) *BucketsListCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketsListCall) Fields(s ...googleapi.Field) *BucketsListCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *BucketsListCall) IfNoneMatch(entityTag string) *BucketsListCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketsListCall) Context(ctx context.Context) *BucketsListCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketsListCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.SetOpaque(req.URL)
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.buckets.list" call.
+// Exactly one of *Buckets or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Buckets.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *BucketsListCall) Do(opts ...googleapi.CallOption) (*Buckets, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Buckets{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Retrieves a list of buckets for a given project.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.buckets.list",
+	//   "parameterOrder": [
+	//     "project"
+	//   ],
+	//   "parameters": {
+	//     "maxResults": {
+	//       "description": "Maximum number of buckets to return.",
+	//       "format": "uint32",
+	//       "location": "query",
+	//       "minimum": "0",
+	//       "type": "integer"
+	//     },
+	//     "pageToken": {
+	//       "description": "A previously-returned page token representing part of the larger set of results to view.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "prefix": {
+	//       "description": "Filter results to buckets whose names begin with this prefix.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "project": {
+	//       "description": "A valid API project identifier.",
+	//       "location": "query",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit owner, acl and defaultObjectAcl properties."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b",
+	//   "response": {
+	//     "$ref": "Buckets"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/cloud-platform.read-only",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_only",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// Pages invokes f for each page of results.
+// A non-nil error returned from f will halt the iteration.
+// The provided context supersedes any context provided to the Context method.
+func (c *BucketsListCall) Pages(ctx context.Context, f func(*Buckets) error) error {
+	c.ctx_ = ctx
+	defer c.PageToken(c.urlParams_.Get("pageToken")) // reset paging to original point
+	for {
+		x, err := c.Do()
+		if err != nil {
+			return err
+		}
+		if err := f(x); err != nil {
+			return err
+		}
+		if x.NextPageToken == "" {
+			return nil
+		}
+		c.PageToken(x.NextPageToken)
+	}
+}
+
+// method id "storage.buckets.patch":
+
+type BucketsPatchCall struct {
+	s          *Service
+	bucket     string
+	bucket2    *Bucket
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Patch: Updates a bucket. This method supports patch semantics.
+func (r *BucketsService) Patch(bucket string, bucket2 *Bucket) *BucketsPatchCall {
+	c := &BucketsPatchCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.bucket2 = bucket2
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the return of the bucket metadata
+// conditional on whether the bucket's current metageneration matches
+// the given value.
+func (c *BucketsPatchCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *BucketsPatchCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the return of the bucket metadata
+// conditional on whether the bucket's current metageneration does not
+// match the given value.
+func (c *BucketsPatchCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *BucketsPatchCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// PredefinedAcl sets the optional parameter "predefinedAcl": Apply a
+// predefined set of access controls to this bucket.
+//
+// Possible values:
+//   "authenticatedRead" - Project team owners get OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "private" - Project team owners get OWNER access.
+//   "projectPrivate" - Project team members get access according to
+// their roles.
+//   "publicRead" - Project team owners get OWNER access, and allUsers
+// get READER access.
+//   "publicReadWrite" - Project team owners get OWNER access, and
+// allUsers get WRITER access.
+func (c *BucketsPatchCall) PredefinedAcl(predefinedAcl string) *BucketsPatchCall {
+	c.urlParams_.Set("predefinedAcl", predefinedAcl)
+	return c
+}
+
+// PredefinedDefaultObjectAcl sets the optional parameter
+// "predefinedDefaultObjectAcl": Apply a predefined set of default
+// object access controls to this bucket.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *BucketsPatchCall) PredefinedDefaultObjectAcl(predefinedDefaultObjectAcl string) *BucketsPatchCall {
+	c.urlParams_.Set("predefinedDefaultObjectAcl", predefinedDefaultObjectAcl)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit owner, acl and defaultObjectAcl properties.
+func (c *BucketsPatchCall) Projection(projection string) *BucketsPatchCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketsPatchCall) Fields(s ...googleapi.Field) *BucketsPatchCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketsPatchCall) Context(ctx context.Context) *BucketsPatchCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketsPatchCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucket2)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PATCH", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.buckets.patch" call.
+// Exactly one of *Bucket or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Bucket.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *BucketsPatchCall) Do(opts ...googleapi.CallOption) (*Bucket, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Bucket{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates a bucket. This method supports patch semantics.",
+	//   "httpMethod": "PATCH",
+	//   "id": "storage.buckets.patch",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "predefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to this bucket.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead",
+	//         "publicReadWrite"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Project team owners get OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Project team owners get OWNER access.",
+	//         "Project team members get access according to their roles.",
+	//         "Project team owners get OWNER access, and allUsers get READER access.",
+	//         "Project team owners get OWNER access, and allUsers get WRITER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "predefinedDefaultObjectAcl": {
+	//       "description": "Apply a predefined set of default object access controls to this bucket.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit owner, acl and defaultObjectAcl properties."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}",
+	//   "request": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "response": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.buckets.update":
+
+type BucketsUpdateCall struct {
+	s          *Service
+	bucket     string
+	bucket2    *Bucket
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Update: Updates a bucket.
+func (r *BucketsService) Update(bucket string, bucket2 *Bucket) *BucketsUpdateCall {
+	c := &BucketsUpdateCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.bucket2 = bucket2
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the return of the bucket metadata
+// conditional on whether the bucket's current metageneration matches
+// the given value.
+func (c *BucketsUpdateCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *BucketsUpdateCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the return of the bucket metadata
+// conditional on whether the bucket's current metageneration does not
+// match the given value.
+func (c *BucketsUpdateCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *BucketsUpdateCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// PredefinedAcl sets the optional parameter "predefinedAcl": Apply a
+// predefined set of access controls to this bucket.
+//
+// Possible values:
+//   "authenticatedRead" - Project team owners get OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "private" - Project team owners get OWNER access.
+//   "projectPrivate" - Project team members get access according to
+// their roles.
+//   "publicRead" - Project team owners get OWNER access, and allUsers
+// get READER access.
+//   "publicReadWrite" - Project team owners get OWNER access, and
+// allUsers get WRITER access.
+func (c *BucketsUpdateCall) PredefinedAcl(predefinedAcl string) *BucketsUpdateCall {
+	c.urlParams_.Set("predefinedAcl", predefinedAcl)
+	return c
+}
+
+// PredefinedDefaultObjectAcl sets the optional parameter
+// "predefinedDefaultObjectAcl": Apply a predefined set of default
+// object access controls to this bucket.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *BucketsUpdateCall) PredefinedDefaultObjectAcl(predefinedDefaultObjectAcl string) *BucketsUpdateCall {
+	c.urlParams_.Set("predefinedDefaultObjectAcl", predefinedDefaultObjectAcl)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit owner, acl and defaultObjectAcl properties.
+func (c *BucketsUpdateCall) Projection(projection string) *BucketsUpdateCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *BucketsUpdateCall) Fields(s ...googleapi.Field) *BucketsUpdateCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *BucketsUpdateCall) Context(ctx context.Context) *BucketsUpdateCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *BucketsUpdateCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucket2)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PUT", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.buckets.update" call.
+// Exactly one of *Bucket or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Bucket.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *BucketsUpdateCall) Do(opts ...googleapi.CallOption) (*Bucket, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Bucket{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates a bucket.",
+	//   "httpMethod": "PUT",
+	//   "id": "storage.buckets.update",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the return of the bucket metadata conditional on whether the bucket's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "predefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to this bucket.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead",
+	//         "publicReadWrite"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Project team owners get OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Project team owners get OWNER access.",
+	//         "Project team members get access according to their roles.",
+	//         "Project team owners get OWNER access, and allUsers get READER access.",
+	//         "Project team owners get OWNER access, and allUsers get WRITER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "predefinedDefaultObjectAcl": {
+	//       "description": "Apply a predefined set of default object access controls to this bucket.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit owner, acl and defaultObjectAcl properties."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}",
+	//   "request": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "response": {
+	//     "$ref": "Bucket"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.channels.stop":
+
+type ChannelsStopCall struct {
+	s          *Service
+	channel    *Channel
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Stop: Stop watching resources through this channel
+func (r *ChannelsService) Stop(channel *Channel) *ChannelsStopCall {
+	c := &ChannelsStopCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.channel = channel
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ChannelsStopCall) Fields(s ...googleapi.Field) *ChannelsStopCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ChannelsStopCall) Context(ctx context.Context) *ChannelsStopCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ChannelsStopCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.channel)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "channels/stop")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.SetOpaque(req.URL)
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.channels.stop" call.
+func (c *ChannelsStopCall) Do(opts ...googleapi.CallOption) error {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if err != nil {
+		return err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return err
+	}
+	return nil
+	// {
+	//   "description": "Stop watching resources through this channel",
+	//   "httpMethod": "POST",
+	//   "id": "storage.channels.stop",
+	//   "path": "channels/stop",
+	//   "request": {
+	//     "$ref": "Channel",
+	//     "parameterName": "resource"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/cloud-platform.read-only",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_only",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// method id "storage.defaultObjectAccessControls.delete":
+
+type DefaultObjectAccessControlsDeleteCall struct {
+	s          *Service
+	bucket     string
+	entity     string
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Delete: Permanently deletes the default object ACL entry for the
+// specified entity on the specified bucket.
+func (r *DefaultObjectAccessControlsService) Delete(bucket string, entity string) *DefaultObjectAccessControlsDeleteCall {
+	c := &DefaultObjectAccessControlsDeleteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *DefaultObjectAccessControlsDeleteCall) Fields(s ...googleapi.Field) *DefaultObjectAccessControlsDeleteCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *DefaultObjectAccessControlsDeleteCall) Context(ctx context.Context) *DefaultObjectAccessControlsDeleteCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *DefaultObjectAccessControlsDeleteCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("DELETE", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.defaultObjectAccessControls.delete" call.
+func (c *DefaultObjectAccessControlsDeleteCall) Do(opts ...googleapi.CallOption) error {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if err != nil {
+		return err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return err
+	}
+	return nil
+	// {
+	//   "description": "Permanently deletes the default object ACL entry for the specified entity on the specified bucket.",
+	//   "httpMethod": "DELETE",
+	//   "id": "storage.defaultObjectAccessControls.delete",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/defaultObjectAcl/{entity}",
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.defaultObjectAccessControls.get":
+
+type DefaultObjectAccessControlsGetCall struct {
+	s            *Service
+	bucket       string
+	entity       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// Get: Returns the default object ACL entry for the specified entity on
+// the specified bucket.
+func (r *DefaultObjectAccessControlsService) Get(bucket string, entity string) *DefaultObjectAccessControlsGetCall {
+	c := &DefaultObjectAccessControlsGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *DefaultObjectAccessControlsGetCall) Fields(s ...googleapi.Field) *DefaultObjectAccessControlsGetCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *DefaultObjectAccessControlsGetCall) IfNoneMatch(entityTag string) *DefaultObjectAccessControlsGetCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *DefaultObjectAccessControlsGetCall) Context(ctx context.Context) *DefaultObjectAccessControlsGetCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *DefaultObjectAccessControlsGetCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.defaultObjectAccessControls.get" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *DefaultObjectAccessControlsGetCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Returns the default object ACL entry for the specified entity on the specified bucket.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.defaultObjectAccessControls.get",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/defaultObjectAcl/{entity}",
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.defaultObjectAccessControls.insert":
+
+type DefaultObjectAccessControlsInsertCall struct {
+	s                   *Service
+	bucket              string
+	objectaccesscontrol *ObjectAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Insert: Creates a new default object ACL entry on the specified
+// bucket.
+func (r *DefaultObjectAccessControlsService) Insert(bucket string, objectaccesscontrol *ObjectAccessControl) *DefaultObjectAccessControlsInsertCall {
+	c := &DefaultObjectAccessControlsInsertCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.objectaccesscontrol = objectaccesscontrol
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *DefaultObjectAccessControlsInsertCall) Fields(s ...googleapi.Field) *DefaultObjectAccessControlsInsertCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *DefaultObjectAccessControlsInsertCall) Context(ctx context.Context) *DefaultObjectAccessControlsInsertCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *DefaultObjectAccessControlsInsertCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.defaultObjectAccessControls.insert" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *DefaultObjectAccessControlsInsertCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Creates a new default object ACL entry on the specified bucket.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.defaultObjectAccessControls.insert",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/defaultObjectAcl",
+	//   "request": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.defaultObjectAccessControls.list":
+
+type DefaultObjectAccessControlsListCall struct {
+	s            *Service
+	bucket       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// List: Retrieves default object ACL entries on the specified bucket.
+func (r *DefaultObjectAccessControlsService) List(bucket string) *DefaultObjectAccessControlsListCall {
+	c := &DefaultObjectAccessControlsListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": If present, only return default ACL listing
+// if the bucket's current metageneration matches this value.
+func (c *DefaultObjectAccessControlsListCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *DefaultObjectAccessControlsListCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": If present, only return default ACL
+// listing if the bucket's current metageneration does not match the
+// given value.
+func (c *DefaultObjectAccessControlsListCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *DefaultObjectAccessControlsListCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *DefaultObjectAccessControlsListCall) Fields(s ...googleapi.Field) *DefaultObjectAccessControlsListCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *DefaultObjectAccessControlsListCall) IfNoneMatch(entityTag string) *DefaultObjectAccessControlsListCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *DefaultObjectAccessControlsListCall) Context(ctx context.Context) *DefaultObjectAccessControlsListCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *DefaultObjectAccessControlsListCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.defaultObjectAccessControls.list" call.
+// Exactly one of *ObjectAccessControls or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControls.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *DefaultObjectAccessControlsListCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControls, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControls{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Retrieves default object ACL entries on the specified bucket.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.defaultObjectAccessControls.list",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "If present, only return default ACL listing if the bucket's current metageneration matches this value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "If present, only return default ACL listing if the bucket's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/defaultObjectAcl",
+	//   "response": {
+	//     "$ref": "ObjectAccessControls"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.defaultObjectAccessControls.patch":
+
+type DefaultObjectAccessControlsPatchCall struct {
+	s                   *Service
+	bucket              string
+	entity              string
+	objectaccesscontrol *ObjectAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Patch: Updates a default object ACL entry on the specified bucket.
+// This method supports patch semantics.
+func (r *DefaultObjectAccessControlsService) Patch(bucket string, entity string, objectaccesscontrol *ObjectAccessControl) *DefaultObjectAccessControlsPatchCall {
+	c := &DefaultObjectAccessControlsPatchCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	c.objectaccesscontrol = objectaccesscontrol
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *DefaultObjectAccessControlsPatchCall) Fields(s ...googleapi.Field) *DefaultObjectAccessControlsPatchCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *DefaultObjectAccessControlsPatchCall) Context(ctx context.Context) *DefaultObjectAccessControlsPatchCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *DefaultObjectAccessControlsPatchCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PATCH", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.defaultObjectAccessControls.patch" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *DefaultObjectAccessControlsPatchCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates a default object ACL entry on the specified bucket. This method supports patch semantics.",
+	//   "httpMethod": "PATCH",
+	//   "id": "storage.defaultObjectAccessControls.patch",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/defaultObjectAcl/{entity}",
+	//   "request": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.defaultObjectAccessControls.update":
+
+type DefaultObjectAccessControlsUpdateCall struct {
+	s                   *Service
+	bucket              string
+	entity              string
+	objectaccesscontrol *ObjectAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Update: Updates a default object ACL entry on the specified bucket.
+func (r *DefaultObjectAccessControlsService) Update(bucket string, entity string, objectaccesscontrol *ObjectAccessControl) *DefaultObjectAccessControlsUpdateCall {
+	c := &DefaultObjectAccessControlsUpdateCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.entity = entity
+	c.objectaccesscontrol = objectaccesscontrol
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *DefaultObjectAccessControlsUpdateCall) Fields(s ...googleapi.Field) *DefaultObjectAccessControlsUpdateCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *DefaultObjectAccessControlsUpdateCall) Context(ctx context.Context) *DefaultObjectAccessControlsUpdateCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *DefaultObjectAccessControlsUpdateCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PUT", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.defaultObjectAccessControls.update" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *DefaultObjectAccessControlsUpdateCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates a default object ACL entry on the specified bucket.",
+	//   "httpMethod": "PUT",
+	//   "id": "storage.defaultObjectAccessControls.update",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/defaultObjectAcl/{entity}",
+	//   "request": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objectAccessControls.delete":
+
+type ObjectAccessControlsDeleteCall struct {
+	s          *Service
+	bucket     string
+	object     string
+	entity     string
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Delete: Permanently deletes the ACL entry for the specified entity on
+// the specified object.
+func (r *ObjectAccessControlsService) Delete(bucket string, object string, entity string) *ObjectAccessControlsDeleteCall {
+	c := &ObjectAccessControlsDeleteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.entity = entity
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectAccessControlsDeleteCall) Generation(generation int64) *ObjectAccessControlsDeleteCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectAccessControlsDeleteCall) Fields(s ...googleapi.Field) *ObjectAccessControlsDeleteCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectAccessControlsDeleteCall) Context(ctx context.Context) *ObjectAccessControlsDeleteCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectAccessControlsDeleteCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("DELETE", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objectAccessControls.delete" call.
+func (c *ObjectAccessControlsDeleteCall) Do(opts ...googleapi.CallOption) error {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if err != nil {
+		return err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return err
+	}
+	return nil
+	// {
+	//   "description": "Permanently deletes the ACL entry for the specified entity on the specified object.",
+	//   "httpMethod": "DELETE",
+	//   "id": "storage.objectAccessControls.delete",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}/acl/{entity}",
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objectAccessControls.get":
+
+type ObjectAccessControlsGetCall struct {
+	s            *Service
+	bucket       string
+	object       string
+	entity       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// Get: Returns the ACL entry for the specified entity on the specified
+// object.
+func (r *ObjectAccessControlsService) Get(bucket string, object string, entity string) *ObjectAccessControlsGetCall {
+	c := &ObjectAccessControlsGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.entity = entity
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectAccessControlsGetCall) Generation(generation int64) *ObjectAccessControlsGetCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectAccessControlsGetCall) Fields(s ...googleapi.Field) *ObjectAccessControlsGetCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *ObjectAccessControlsGetCall) IfNoneMatch(entityTag string) *ObjectAccessControlsGetCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectAccessControlsGetCall) Context(ctx context.Context) *ObjectAccessControlsGetCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectAccessControlsGetCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objectAccessControls.get" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *ObjectAccessControlsGetCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Returns the ACL entry for the specified entity on the specified object.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.objectAccessControls.get",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}/acl/{entity}",
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objectAccessControls.insert":
+
+type ObjectAccessControlsInsertCall struct {
+	s                   *Service
+	bucket              string
+	object              string
+	objectaccesscontrol *ObjectAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Insert: Creates a new ACL entry on the specified object.
+func (r *ObjectAccessControlsService) Insert(bucket string, object string, objectaccesscontrol *ObjectAccessControl) *ObjectAccessControlsInsertCall {
+	c := &ObjectAccessControlsInsertCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.objectaccesscontrol = objectaccesscontrol
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectAccessControlsInsertCall) Generation(generation int64) *ObjectAccessControlsInsertCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectAccessControlsInsertCall) Fields(s ...googleapi.Field) *ObjectAccessControlsInsertCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectAccessControlsInsertCall) Context(ctx context.Context) *ObjectAccessControlsInsertCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectAccessControlsInsertCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objectAccessControls.insert" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *ObjectAccessControlsInsertCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Creates a new ACL entry on the specified object.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.objectAccessControls.insert",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}/acl",
+	//   "request": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objectAccessControls.list":
+
+type ObjectAccessControlsListCall struct {
+	s            *Service
+	bucket       string
+	object       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// List: Retrieves ACL entries on the specified object.
+func (r *ObjectAccessControlsService) List(bucket string, object string) *ObjectAccessControlsListCall {
+	c := &ObjectAccessControlsListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectAccessControlsListCall) Generation(generation int64) *ObjectAccessControlsListCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectAccessControlsListCall) Fields(s ...googleapi.Field) *ObjectAccessControlsListCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *ObjectAccessControlsListCall) IfNoneMatch(entityTag string) *ObjectAccessControlsListCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectAccessControlsListCall) Context(ctx context.Context) *ObjectAccessControlsListCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectAccessControlsListCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objectAccessControls.list" call.
+// Exactly one of *ObjectAccessControls or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControls.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *ObjectAccessControlsListCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControls, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControls{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Retrieves ACL entries on the specified object.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.objectAccessControls.list",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}/acl",
+	//   "response": {
+	//     "$ref": "ObjectAccessControls"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objectAccessControls.patch":
+
+type ObjectAccessControlsPatchCall struct {
+	s                   *Service
+	bucket              string
+	object              string
+	entity              string
+	objectaccesscontrol *ObjectAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Patch: Updates an ACL entry on the specified object. This method
+// supports patch semantics.
+func (r *ObjectAccessControlsService) Patch(bucket string, object string, entity string, objectaccesscontrol *ObjectAccessControl) *ObjectAccessControlsPatchCall {
+	c := &ObjectAccessControlsPatchCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.entity = entity
+	c.objectaccesscontrol = objectaccesscontrol
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectAccessControlsPatchCall) Generation(generation int64) *ObjectAccessControlsPatchCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectAccessControlsPatchCall) Fields(s ...googleapi.Field) *ObjectAccessControlsPatchCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectAccessControlsPatchCall) Context(ctx context.Context) *ObjectAccessControlsPatchCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectAccessControlsPatchCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PATCH", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objectAccessControls.patch" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *ObjectAccessControlsPatchCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates an ACL entry on the specified object. This method supports patch semantics.",
+	//   "httpMethod": "PATCH",
+	//   "id": "storage.objectAccessControls.patch",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}/acl/{entity}",
+	//   "request": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objectAccessControls.update":
+
+type ObjectAccessControlsUpdateCall struct {
+	s                   *Service
+	bucket              string
+	object              string
+	entity              string
+	objectaccesscontrol *ObjectAccessControl
+	urlParams_          gensupport.URLParams
+	ctx_                context.Context
+}
+
+// Update: Updates an ACL entry on the specified object.
+func (r *ObjectAccessControlsService) Update(bucket string, object string, entity string, objectaccesscontrol *ObjectAccessControl) *ObjectAccessControlsUpdateCall {
+	c := &ObjectAccessControlsUpdateCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.entity = entity
+	c.objectaccesscontrol = objectaccesscontrol
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectAccessControlsUpdateCall) Generation(generation int64) *ObjectAccessControlsUpdateCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectAccessControlsUpdateCall) Fields(s ...googleapi.Field) *ObjectAccessControlsUpdateCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectAccessControlsUpdateCall) Context(ctx context.Context) *ObjectAccessControlsUpdateCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectAccessControlsUpdateCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl/{entity}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PUT", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+		"entity": c.entity,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objectAccessControls.update" call.
+// Exactly one of *ObjectAccessControl or error will be non-nil. Any
+// non-2xx status code is an error. Response headers are in either
+// *ObjectAccessControl.ServerResponse.Header or (if a response was
+// returned at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *ObjectAccessControlsUpdateCall) Do(opts ...googleapi.CallOption) (*ObjectAccessControl, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &ObjectAccessControl{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates an ACL entry on the specified object.",
+	//   "httpMethod": "PUT",
+	//   "id": "storage.objectAccessControls.update",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object",
+	//     "entity"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of a bucket.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "entity": {
+	//       "description": "The entity holding the permission. Can be user-userId, user-emailAddress, group-groupId, group-emailAddress, allUsers, or allAuthenticatedUsers.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}/acl/{entity}",
+	//   "request": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "response": {
+	//     "$ref": "ObjectAccessControl"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objects.compose":
+
+type ObjectsComposeCall struct {
+	s                 *Service
+	destinationBucket string
+	destinationObject string
+	composerequest    *ComposeRequest
+	urlParams_        gensupport.URLParams
+	ctx_              context.Context
+}
+
+// Compose: Concatenates a list of existing objects into a new object in
+// the same bucket.
+func (r *ObjectsService) Compose(destinationBucket string, destinationObject string, composerequest *ComposeRequest) *ObjectsComposeCall {
+	c := &ObjectsComposeCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.destinationBucket = destinationBucket
+	c.destinationObject = destinationObject
+	c.composerequest = composerequest
+	return c
+}
+
+// DestinationPredefinedAcl sets the optional parameter
+// "destinationPredefinedAcl": Apply a predefined set of access controls
+// to the destination object.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *ObjectsComposeCall) DestinationPredefinedAcl(destinationPredefinedAcl string) *ObjectsComposeCall {
+	c.urlParams_.Set("destinationPredefinedAcl", destinationPredefinedAcl)
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the object's current
+// generation matches the given value.
+func (c *ObjectsComposeCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsComposeCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the object's current metageneration matches the given value.
+func (c *ObjectsComposeCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsComposeCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsComposeCall) Fields(s ...googleapi.Field) *ObjectsComposeCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do and Download
+// methods. Any pending HTTP request will be aborted if the provided
+// context is canceled.
+func (c *ObjectsComposeCall) Context(ctx context.Context) *ObjectsComposeCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsComposeCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.composerequest)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{destinationBucket}/o/{destinationObject}/compose")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"destinationBucket": c.destinationBucket,
+		"destinationObject": c.destinationObject,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Download fetches the API endpoint's "media" value, instead of the normal
+// API response value. If the returned error is nil, the Response is guaranteed to
+// have a 2xx status code. Callers must close the Response.Body as usual.
+func (c *ObjectsComposeCall) Download(opts ...googleapi.CallOption) (*http.Response, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("media")
+	if err != nil {
+		return nil, err
+	}
+	if err := googleapi.CheckMediaResponse(res); err != nil {
+		res.Body.Close()
+		return nil, err
+	}
+	return res, nil
+}
+
+// Do executes the "storage.objects.compose" call.
+// Exactly one of *Object or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Object.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsComposeCall) Do(opts ...googleapi.CallOption) (*Object, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Object{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Concatenates a list of existing objects into a new object in the same bucket.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.objects.compose",
+	//   "parameterOrder": [
+	//     "destinationBucket",
+	//     "destinationObject"
+	//   ],
+	//   "parameters": {
+	//     "destinationBucket": {
+	//       "description": "Name of the bucket in which to store the new object.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "destinationObject": {
+	//       "description": "Name of the new object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "destinationPredefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to the destination object.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{destinationBucket}/o/{destinationObject}/compose",
+	//   "request": {
+	//     "$ref": "ComposeRequest"
+	//   },
+	//   "response": {
+	//     "$ref": "Object"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ],
+	//   "supportsMediaDownload": true,
+	//   "useMediaDownloadService": true
+	// }
+
+}
+
+// method id "storage.objects.copy":
+
+type ObjectsCopyCall struct {
+	s                 *Service
+	sourceBucket      string
+	sourceObject      string
+	destinationBucket string
+	destinationObject string
+	object            *Object
+	urlParams_        gensupport.URLParams
+	ctx_              context.Context
+}
+
+// Copy: Copies a source object to a destination object. Optionally
+// overrides metadata.
+func (r *ObjectsService) Copy(sourceBucket string, sourceObject string, destinationBucket string, destinationObject string, object *Object) *ObjectsCopyCall {
+	c := &ObjectsCopyCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.sourceBucket = sourceBucket
+	c.sourceObject = sourceObject
+	c.destinationBucket = destinationBucket
+	c.destinationObject = destinationObject
+	c.object = object
+	return c
+}
+
+// DestinationPredefinedAcl sets the optional parameter
+// "destinationPredefinedAcl": Apply a predefined set of access controls
+// to the destination object.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *ObjectsCopyCall) DestinationPredefinedAcl(destinationPredefinedAcl string) *ObjectsCopyCall {
+	c.urlParams_.Set("destinationPredefinedAcl", destinationPredefinedAcl)
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the destination object's
+// current generation matches the given value.
+func (c *ObjectsCopyCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the destination object's current generation does not match the given
+// value.
+func (c *ObjectsCopyCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the destination object's current metageneration matches the given
+// value.
+func (c *ObjectsCopyCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the destination object's current metageneration does not
+// match the given value.
+func (c *ObjectsCopyCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// IfSourceGenerationMatch sets the optional parameter
+// "ifSourceGenerationMatch": Makes the operation conditional on whether
+// the source object's generation matches the given value.
+func (c *ObjectsCopyCall) IfSourceGenerationMatch(ifSourceGenerationMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifSourceGenerationMatch", fmt.Sprint(ifSourceGenerationMatch))
+	return c
+}
+
+// IfSourceGenerationNotMatch sets the optional parameter
+// "ifSourceGenerationNotMatch": Makes the operation conditional on
+// whether the source object's generation does not match the given
+// value.
+func (c *ObjectsCopyCall) IfSourceGenerationNotMatch(ifSourceGenerationNotMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifSourceGenerationNotMatch", fmt.Sprint(ifSourceGenerationNotMatch))
+	return c
+}
+
+// IfSourceMetagenerationMatch sets the optional parameter
+// "ifSourceMetagenerationMatch": Makes the operation conditional on
+// whether the source object's current metageneration matches the given
+// value.
+func (c *ObjectsCopyCall) IfSourceMetagenerationMatch(ifSourceMetagenerationMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifSourceMetagenerationMatch", fmt.Sprint(ifSourceMetagenerationMatch))
+	return c
+}
+
+// IfSourceMetagenerationNotMatch sets the optional parameter
+// "ifSourceMetagenerationNotMatch": Makes the operation conditional on
+// whether the source object's current metageneration does not match the
+// given value.
+func (c *ObjectsCopyCall) IfSourceMetagenerationNotMatch(ifSourceMetagenerationNotMatch int64) *ObjectsCopyCall {
+	c.urlParams_.Set("ifSourceMetagenerationNotMatch", fmt.Sprint(ifSourceMetagenerationNotMatch))
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl, unless the object resource
+// specifies the acl property, when it defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsCopyCall) Projection(projection string) *ObjectsCopyCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// SourceGeneration sets the optional parameter "sourceGeneration": If
+// present, selects a specific revision of the source object (as opposed
+// to the latest version, the default).
+func (c *ObjectsCopyCall) SourceGeneration(sourceGeneration int64) *ObjectsCopyCall {
+	c.urlParams_.Set("sourceGeneration", fmt.Sprint(sourceGeneration))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsCopyCall) Fields(s ...googleapi.Field) *ObjectsCopyCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do and Download
+// methods. Any pending HTTP request will be aborted if the provided
+// context is canceled.
+func (c *ObjectsCopyCall) Context(ctx context.Context) *ObjectsCopyCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsCopyCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{sourceBucket}/o/{sourceObject}/copyTo/b/{destinationBucket}/o/{destinationObject}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"sourceBucket":      c.sourceBucket,
+		"sourceObject":      c.sourceObject,
+		"destinationBucket": c.destinationBucket,
+		"destinationObject": c.destinationObject,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Download fetches the API endpoint's "media" value, instead of the normal
+// API response value. If the returned error is nil, the Response is guaranteed to
+// have a 2xx status code. Callers must close the Response.Body as usual.
+func (c *ObjectsCopyCall) Download(opts ...googleapi.CallOption) (*http.Response, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("media")
+	if err != nil {
+		return nil, err
+	}
+	if err := googleapi.CheckMediaResponse(res); err != nil {
+		res.Body.Close()
+		return nil, err
+	}
+	return res, nil
+}
+
+// Do executes the "storage.objects.copy" call.
+// Exactly one of *Object or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Object.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsCopyCall) Do(opts ...googleapi.CallOption) (*Object, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Object{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Copies a source object to a destination object. Optionally overrides metadata.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.objects.copy",
+	//   "parameterOrder": [
+	//     "sourceBucket",
+	//     "sourceObject",
+	//     "destinationBucket",
+	//     "destinationObject"
+	//   ],
+	//   "parameters": {
+	//     "destinationBucket": {
+	//       "description": "Name of the bucket in which to store the new object. Overrides the provided object metadata's bucket value, if any.For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "destinationObject": {
+	//       "description": "Name of the new object. Required when the object metadata is not otherwise provided. Overrides the object metadata's name value, if any.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "destinationPredefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to the destination object.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl, unless the object resource specifies the acl property, when it defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "sourceBucket": {
+	//       "description": "Name of the bucket in which to find the source object.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "sourceGeneration": {
+	//       "description": "If present, selects a specific revision of the source object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "sourceObject": {
+	//       "description": "Name of the source object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{sourceBucket}/o/{sourceObject}/copyTo/b/{destinationBucket}/o/{destinationObject}",
+	//   "request": {
+	//     "$ref": "Object"
+	//   },
+	//   "response": {
+	//     "$ref": "Object"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ],
+	//   "supportsMediaDownload": true,
+	//   "useMediaDownloadService": true
+	// }
+
+}
+
+// method id "storage.objects.delete":
+
+type ObjectsDeleteCall struct {
+	s          *Service
+	bucket     string
+	object     string
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Delete: Deletes an object and its metadata. Deletions are permanent
+// if versioning is not enabled for the bucket, or if the generation
+// parameter is used.
+func (r *ObjectsService) Delete(bucket string, object string) *ObjectsDeleteCall {
+	c := &ObjectsDeleteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// permanently deletes a specific revision of this object (as opposed to
+// the latest version, the default).
+func (c *ObjectsDeleteCall) Generation(generation int64) *ObjectsDeleteCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the object's current
+// generation matches the given value.
+func (c *ObjectsDeleteCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsDeleteCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the object's current generation does not match the given value.
+func (c *ObjectsDeleteCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsDeleteCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the object's current metageneration matches the given value.
+func (c *ObjectsDeleteCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsDeleteCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the object's current metageneration does not match the given
+// value.
+func (c *ObjectsDeleteCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsDeleteCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsDeleteCall) Fields(s ...googleapi.Field) *ObjectsDeleteCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectsDeleteCall) Context(ctx context.Context) *ObjectsDeleteCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsDeleteCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("DELETE", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objects.delete" call.
+func (c *ObjectsDeleteCall) Do(opts ...googleapi.CallOption) error {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if err != nil {
+		return err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return err
+	}
+	return nil
+	// {
+	//   "description": "Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the generation parameter is used.",
+	//   "httpMethod": "DELETE",
+	//   "id": "storage.objects.delete",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which the object resides.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, permanently deletes a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}",
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objects.get":
+
+type ObjectsGetCall struct {
+	s            *Service
+	bucket       string
+	object       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// Get: Retrieves an object or its metadata.
+func (r *ObjectsService) Get(bucket string, object string) *ObjectsGetCall {
+	c := &ObjectsGetCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectsGetCall) Generation(generation int64) *ObjectsGetCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the object's generation
+// matches the given value.
+func (c *ObjectsGetCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsGetCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the object's generation does not match the given value.
+func (c *ObjectsGetCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsGetCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the object's current metageneration matches the given value.
+func (c *ObjectsGetCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsGetCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the object's current metageneration does not match the given
+// value.
+func (c *ObjectsGetCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsGetCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsGetCall) Projection(projection string) *ObjectsGetCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsGetCall) Fields(s ...googleapi.Field) *ObjectsGetCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *ObjectsGetCall) IfNoneMatch(entityTag string) *ObjectsGetCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do and Download
+// methods. Any pending HTTP request will be aborted if the provided
+// context is canceled.
+func (c *ObjectsGetCall) Context(ctx context.Context) *ObjectsGetCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsGetCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Download fetches the API endpoint's "media" value, instead of the normal
+// API response value. If the returned error is nil, the Response is guaranteed to
+// have a 2xx status code. Callers must close the Response.Body as usual.
+func (c *ObjectsGetCall) Download(opts ...googleapi.CallOption) (*http.Response, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("media")
+	if err != nil {
+		return nil, err
+	}
+	if err := googleapi.CheckMediaResponse(res); err != nil {
+		res.Body.Close()
+		return nil, err
+	}
+	return res, nil
+}
+
+// Do executes the "storage.objects.get" call.
+// Exactly one of *Object or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Object.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsGetCall) Do(opts ...googleapi.CallOption) (*Object, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Object{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Retrieves an object or its metadata.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.objects.get",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which the object resides.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}",
+	//   "response": {
+	//     "$ref": "Object"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/cloud-platform.read-only",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_only",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ],
+	//   "supportsMediaDownload": true,
+	//   "useMediaDownloadService": true
+	// }
+
+}
+
+// method id "storage.objects.insert":
+
+type ObjectsInsertCall struct {
+	s                *Service
+	bucket           string
+	object           *Object
+	urlParams_       gensupport.URLParams
+	media_           io.Reader
+	mediaBuffer_     *gensupport.MediaBuffer
+	mediaType_       string
+	mediaSize_       int64 // mediaSize, if known.  Used only for calls to progressUpdater_.
+	progressUpdater_ googleapi.ProgressUpdater
+	ctx_             context.Context
+}
+
+// Insert: Stores a new object and metadata.
+func (r *ObjectsService) Insert(bucket string, object *Object) *ObjectsInsertCall {
+	c := &ObjectsInsertCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	return c
+}
+
+// ContentEncoding sets the optional parameter "contentEncoding": If
+// set, sets the contentEncoding property of the final object to this
+// value. Setting this parameter is equivalent to setting the
+// contentEncoding metadata property. This can be useful when uploading
+// an object with uploadType=media to indicate the encoding of the
+// content being uploaded.
+func (c *ObjectsInsertCall) ContentEncoding(contentEncoding string) *ObjectsInsertCall {
+	c.urlParams_.Set("contentEncoding", contentEncoding)
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the object's current
+// generation matches the given value.
+func (c *ObjectsInsertCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsInsertCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the object's current generation does not match the given value.
+func (c *ObjectsInsertCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsInsertCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the object's current metageneration matches the given value.
+func (c *ObjectsInsertCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsInsertCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the object's current metageneration does not match the given
+// value.
+func (c *ObjectsInsertCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsInsertCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// Name sets the optional parameter "name": Name of the object. Required
+// when the object metadata is not otherwise provided. Overrides the
+// object metadata's name value, if any. For information about how to
+// URL encode object names to be path safe, see Encoding URI Path Parts.
+func (c *ObjectsInsertCall) Name(name string) *ObjectsInsertCall {
+	c.urlParams_.Set("name", name)
+	return c
+}
+
+// PredefinedAcl sets the optional parameter "predefinedAcl": Apply a
+// predefined set of access controls to this object.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *ObjectsInsertCall) PredefinedAcl(predefinedAcl string) *ObjectsInsertCall {
+	c.urlParams_.Set("predefinedAcl", predefinedAcl)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl, unless the object resource
+// specifies the acl property, when it defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsInsertCall) Projection(projection string) *ObjectsInsertCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Media specifies the media to upload in one or more chunks. The chunk
+// size may be controlled by supplying a MediaOption generated by
+// googleapi.ChunkSize. The chunk size defaults to
+// googleapi.DefaultUploadChunkSize.The Content-Type header used in the
+// upload request will be determined by sniffing the contents of r,
+// unless a MediaOption generated by googleapi.ContentType is
+// supplied.
+// At most one of Media and ResumableMedia may be set.
+func (c *ObjectsInsertCall) Media(r io.Reader, options ...googleapi.MediaOption) *ObjectsInsertCall {
+	opts := googleapi.ProcessMediaOptions(options)
+	chunkSize := opts.ChunkSize
+	if !opts.ForceEmptyContentType {
+		r, c.mediaType_ = gensupport.DetermineContentType(r, opts.ContentType)
+	}
+	c.media_, c.mediaBuffer_ = gensupport.PrepareUpload(r, chunkSize)
+	return c
+}
+
+// ResumableMedia specifies the media to upload in chunks and can be
+// canceled with ctx.
+//
+// Deprecated: use Media instead.
+//
+// At most one of Media and ResumableMedia may be set. mediaType
+// identifies the MIME media type of the upload, such as "image/png". If
+// mediaType is "", it will be auto-detected. The provided ctx will
+// supersede any context previously provided to the Context method.
+func (c *ObjectsInsertCall) ResumableMedia(ctx context.Context, r io.ReaderAt, size int64, mediaType string) *ObjectsInsertCall {
+	c.ctx_ = ctx
+	rdr := gensupport.ReaderAtToReader(r, size)
+	rdr, c.mediaType_ = gensupport.DetermineContentType(rdr, mediaType)
+	c.mediaBuffer_ = gensupport.NewMediaBuffer(rdr, googleapi.DefaultUploadChunkSize)
+	c.media_ = nil
+	c.mediaSize_ = size
+	return c
+}
+
+// ProgressUpdater provides a callback function that will be called
+// after every chunk. It should be a low-latency function in order to
+// not slow down the upload operation. This should only be called when
+// using ResumableMedia (as opposed to Media).
+func (c *ObjectsInsertCall) ProgressUpdater(pu googleapi.ProgressUpdater) *ObjectsInsertCall {
+	c.progressUpdater_ = pu
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsInsertCall) Fields(s ...googleapi.Field) *ObjectsInsertCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+// This context will supersede any context previously provided to the
+// ResumableMedia method.
+func (c *ObjectsInsertCall) Context(ctx context.Context) *ObjectsInsertCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsInsertCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o")
+	if c.media_ != nil || c.mediaBuffer_ != nil {
+		urls = strings.Replace(urls, "https://www.googleapis.com/", "https://www.googleapis.com/upload/", 1)
+		protocol := "multipart"
+		if c.mediaBuffer_ != nil {
+			protocol = "resumable"
+		}
+		c.urlParams_.Set("uploadType", protocol)
+	}
+	if body == nil {
+		body = new(bytes.Buffer)
+		reqHeaders.Set("Content-Type", "application/json")
+	}
+	if c.media_ != nil {
+		combined, ctype := gensupport.CombineBodyMedia(body, "application/json", c.media_, c.mediaType_)
+		defer combined.Close()
+		reqHeaders.Set("Content-Type", ctype)
+		body = combined
+	}
+	if c.mediaBuffer_ != nil && c.mediaType_ != "" {
+		reqHeaders.Set("X-Upload-Content-Type", c.mediaType_)
+	}
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objects.insert" call.
+// Exactly one of *Object or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Object.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsInsertCall) Do(opts ...googleapi.CallOption) (*Object, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	if c.mediaBuffer_ != nil {
+		loc := res.Header.Get("Location")
+		rx := &gensupport.ResumableUpload{
+			Client:    c.s.client,
+			UserAgent: c.s.userAgent(),
+			URI:       loc,
+			Media:     c.mediaBuffer_,
+			MediaType: c.mediaType_,
+			Callback: func(curr int64) {
+				if c.progressUpdater_ != nil {
+					c.progressUpdater_(curr, c.mediaSize_)
+				}
+			},
+		}
+		ctx := c.ctx_
+		if ctx == nil {
+			ctx = context.TODO()
+		}
+		res, err = rx.Upload(ctx)
+		if err != nil {
+			return nil, err
+		}
+		defer res.Body.Close()
+		if err := googleapi.CheckResponse(res); err != nil {
+			return nil, err
+		}
+	}
+	ret := &Object{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Stores a new object and metadata.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.objects.insert",
+	//   "mediaUpload": {
+	//     "accept": [
+	//       "*/*"
+	//     ],
+	//     "protocols": {
+	//       "resumable": {
+	//         "multipart": true,
+	//         "path": "/resumable/upload/storage/v1/b/{bucket}/o"
+	//       },
+	//       "simple": {
+	//         "multipart": true,
+	//         "path": "/upload/storage/v1/b/{bucket}/o"
+	//       }
+	//     }
+	//   },
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which to store the new object. Overrides the provided object metadata's bucket value, if any.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "contentEncoding": {
+	//       "description": "If set, sets the contentEncoding property of the final object to this value. Setting this parameter is equivalent to setting the contentEncoding metadata property. This can be useful when uploading an object with uploadType=media to indicate the encoding of the content being uploaded.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "name": {
+	//       "description": "Name of the object. Required when the object metadata is not otherwise provided. Overrides the object metadata's name value, if any. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "predefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to this object.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl, unless the object resource specifies the acl property, when it defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o",
+	//   "request": {
+	//     "$ref": "Object"
+	//   },
+	//   "response": {
+	//     "$ref": "Object"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ],
+	//   "supportsMediaDownload": true,
+	//   "supportsMediaUpload": true,
+	//   "useMediaDownloadService": true
+	// }
+
+}
+
+// method id "storage.objects.list":
+
+type ObjectsListCall struct {
+	s            *Service
+	bucket       string
+	urlParams_   gensupport.URLParams
+	ifNoneMatch_ string
+	ctx_         context.Context
+}
+
+// List: Retrieves a list of objects matching the criteria.
+func (r *ObjectsService) List(bucket string) *ObjectsListCall {
+	c := &ObjectsListCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	return c
+}
+
+// Delimiter sets the optional parameter "delimiter": Returns results in
+// a directory-like mode. items will contain only objects whose names,
+// aside from the prefix, do not contain delimiter. Objects whose names,
+// aside from the prefix, contain delimiter will have their name,
+// truncated after the delimiter, returned in prefixes. Duplicate
+// prefixes are omitted.
+func (c *ObjectsListCall) Delimiter(delimiter string) *ObjectsListCall {
+	c.urlParams_.Set("delimiter", delimiter)
+	return c
+}
+
+// MaxResults sets the optional parameter "maxResults": Maximum number
+// of items plus prefixes to return. As duplicate prefixes are omitted,
+// fewer total results may be returned than requested. The default value
+// of this parameter is 1,000 items.
+func (c *ObjectsListCall) MaxResults(maxResults int64) *ObjectsListCall {
+	c.urlParams_.Set("maxResults", fmt.Sprint(maxResults))
+	return c
+}
+
+// PageToken sets the optional parameter "pageToken": A
+// previously-returned page token representing part of the larger set of
+// results to view.
+func (c *ObjectsListCall) PageToken(pageToken string) *ObjectsListCall {
+	c.urlParams_.Set("pageToken", pageToken)
+	return c
+}
+
+// Prefix sets the optional parameter "prefix": Filter results to
+// objects whose names begin with this prefix.
+func (c *ObjectsListCall) Prefix(prefix string) *ObjectsListCall {
+	c.urlParams_.Set("prefix", prefix)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsListCall) Projection(projection string) *ObjectsListCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Versions sets the optional parameter "versions": If true, lists all
+// versions of an object as distinct results. The default is false. For
+// more information, see Object Versioning.
+func (c *ObjectsListCall) Versions(versions bool) *ObjectsListCall {
+	c.urlParams_.Set("versions", fmt.Sprint(versions))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsListCall) Fields(s ...googleapi.Field) *ObjectsListCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// IfNoneMatch sets the optional parameter which makes the operation
+// fail if the object's ETag matches the given value. This is useful for
+// getting updates only after the object has changed since the last
+// request. Use googleapi.IsNotModified to check whether the response
+// error from Do is the result of In-None-Match.
+func (c *ObjectsListCall) IfNoneMatch(entityTag string) *ObjectsListCall {
+	c.ifNoneMatch_ = entityTag
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectsListCall) Context(ctx context.Context) *ObjectsListCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsListCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	if c.ifNoneMatch_ != "" {
+		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
+	}
+	var body io.Reader = nil
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("GET", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objects.list" call.
+// Exactly one of *Objects or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Objects.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsListCall) Do(opts ...googleapi.CallOption) (*Objects, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Objects{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Retrieves a list of objects matching the criteria.",
+	//   "httpMethod": "GET",
+	//   "id": "storage.objects.list",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which to look for objects.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "delimiter": {
+	//       "description": "Returns results in a directory-like mode. items will contain only objects whose names, aside from the prefix, do not contain delimiter. Objects whose names, aside from the prefix, contain delimiter will have their name, truncated after the delimiter, returned in prefixes. Duplicate prefixes are omitted.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "maxResults": {
+	//       "description": "Maximum number of items plus prefixes to return. As duplicate prefixes are omitted, fewer total results may be returned than requested. The default value of this parameter is 1,000 items.",
+	//       "format": "uint32",
+	//       "location": "query",
+	//       "minimum": "0",
+	//       "type": "integer"
+	//     },
+	//     "pageToken": {
+	//       "description": "A previously-returned page token representing part of the larger set of results to view.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "prefix": {
+	//       "description": "Filter results to objects whose names begin with this prefix.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "versions": {
+	//       "description": "If true, lists all versions of an object as distinct results. The default is false. For more information, see Object Versioning.",
+	//       "location": "query",
+	//       "type": "boolean"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o",
+	//   "response": {
+	//     "$ref": "Objects"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/cloud-platform.read-only",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_only",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ],
+	//   "supportsSubscription": true
+	// }
+
+}
+
+// Pages invokes f for each page of results.
+// A non-nil error returned from f will halt the iteration.
+// The provided context supersedes any context provided to the Context method.
+func (c *ObjectsListCall) Pages(ctx context.Context, f func(*Objects) error) error {
+	c.ctx_ = ctx
+	defer c.PageToken(c.urlParams_.Get("pageToken")) // reset paging to original point
+	for {
+		x, err := c.Do()
+		if err != nil {
+			return err
+		}
+		if err := f(x); err != nil {
+			return err
+		}
+		if x.NextPageToken == "" {
+			return nil
+		}
+		c.PageToken(x.NextPageToken)
+	}
+}
+
+// method id "storage.objects.patch":
+
+type ObjectsPatchCall struct {
+	s          *Service
+	bucket     string
+	object     string
+	object2    *Object
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Patch: Updates an object's metadata. This method supports patch
+// semantics.
+func (r *ObjectsService) Patch(bucket string, object string, object2 *Object) *ObjectsPatchCall {
+	c := &ObjectsPatchCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.object2 = object2
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectsPatchCall) Generation(generation int64) *ObjectsPatchCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the object's current
+// generation matches the given value.
+func (c *ObjectsPatchCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsPatchCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the object's current generation does not match the given value.
+func (c *ObjectsPatchCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsPatchCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the object's current metageneration matches the given value.
+func (c *ObjectsPatchCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsPatchCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the object's current metageneration does not match the given
+// value.
+func (c *ObjectsPatchCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsPatchCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// PredefinedAcl sets the optional parameter "predefinedAcl": Apply a
+// predefined set of access controls to this object.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *ObjectsPatchCall) PredefinedAcl(predefinedAcl string) *ObjectsPatchCall {
+	c.urlParams_.Set("predefinedAcl", predefinedAcl)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsPatchCall) Projection(projection string) *ObjectsPatchCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsPatchCall) Fields(s ...googleapi.Field) *ObjectsPatchCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectsPatchCall) Context(ctx context.Context) *ObjectsPatchCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsPatchCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object2)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PATCH", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objects.patch" call.
+// Exactly one of *Object or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Object.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsPatchCall) Do(opts ...googleapi.CallOption) (*Object, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Object{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates an object's metadata. This method supports patch semantics.",
+	//   "httpMethod": "PATCH",
+	//   "id": "storage.objects.patch",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which the object resides.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "predefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to this object.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}",
+	//   "request": {
+	//     "$ref": "Object"
+	//   },
+	//   "response": {
+	//     "$ref": "Object"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objects.rewrite":
+
+type ObjectsRewriteCall struct {
+	s                 *Service
+	sourceBucket      string
+	sourceObject      string
+	destinationBucket string
+	destinationObject string
+	object            *Object
+	urlParams_        gensupport.URLParams
+	ctx_              context.Context
+}
+
+// Rewrite: Rewrites a source object to a destination object. Optionally
+// overrides metadata.
+func (r *ObjectsService) Rewrite(sourceBucket string, sourceObject string, destinationBucket string, destinationObject string, object *Object) *ObjectsRewriteCall {
+	c := &ObjectsRewriteCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.sourceBucket = sourceBucket
+	c.sourceObject = sourceObject
+	c.destinationBucket = destinationBucket
+	c.destinationObject = destinationObject
+	c.object = object
+	return c
+}
+
+// DestinationPredefinedAcl sets the optional parameter
+// "destinationPredefinedAcl": Apply a predefined set of access controls
+// to the destination object.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *ObjectsRewriteCall) DestinationPredefinedAcl(destinationPredefinedAcl string) *ObjectsRewriteCall {
+	c.urlParams_.Set("destinationPredefinedAcl", destinationPredefinedAcl)
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the destination object's
+// current generation matches the given value.
+func (c *ObjectsRewriteCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the destination object's current generation does not match the given
+// value.
+func (c *ObjectsRewriteCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the destination object's current metageneration matches the given
+// value.
+func (c *ObjectsRewriteCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the destination object's current metageneration does not
+// match the given value.
+func (c *ObjectsRewriteCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// IfSourceGenerationMatch sets the optional parameter
+// "ifSourceGenerationMatch": Makes the operation conditional on whether
+// the source object's generation matches the given value.
+func (c *ObjectsRewriteCall) IfSourceGenerationMatch(ifSourceGenerationMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifSourceGenerationMatch", fmt.Sprint(ifSourceGenerationMatch))
+	return c
+}
+
+// IfSourceGenerationNotMatch sets the optional parameter
+// "ifSourceGenerationNotMatch": Makes the operation conditional on
+// whether the source object's generation does not match the given
+// value.
+func (c *ObjectsRewriteCall) IfSourceGenerationNotMatch(ifSourceGenerationNotMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifSourceGenerationNotMatch", fmt.Sprint(ifSourceGenerationNotMatch))
+	return c
+}
+
+// IfSourceMetagenerationMatch sets the optional parameter
+// "ifSourceMetagenerationMatch": Makes the operation conditional on
+// whether the source object's current metageneration matches the given
+// value.
+func (c *ObjectsRewriteCall) IfSourceMetagenerationMatch(ifSourceMetagenerationMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifSourceMetagenerationMatch", fmt.Sprint(ifSourceMetagenerationMatch))
+	return c
+}
+
+// IfSourceMetagenerationNotMatch sets the optional parameter
+// "ifSourceMetagenerationNotMatch": Makes the operation conditional on
+// whether the source object's current metageneration does not match the
+// given value.
+func (c *ObjectsRewriteCall) IfSourceMetagenerationNotMatch(ifSourceMetagenerationNotMatch int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("ifSourceMetagenerationNotMatch", fmt.Sprint(ifSourceMetagenerationNotMatch))
+	return c
+}
+
+// MaxBytesRewrittenPerCall sets the optional parameter
+// "maxBytesRewrittenPerCall": The maximum number of bytes that will be
+// rewritten per rewrite request. Most callers shouldn't need to specify
+// this parameter - it is primarily in place to support testing. If
+// specified the value must be an integral multiple of 1 MiB (1048576).
+// Also, this only applies to requests where the source and destination
+// span locations and/or storage classes. Finally, this value must not
+// change across rewrite calls else you'll get an error that the
+// rewriteToken is invalid.
+func (c *ObjectsRewriteCall) MaxBytesRewrittenPerCall(maxBytesRewrittenPerCall int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("maxBytesRewrittenPerCall", fmt.Sprint(maxBytesRewrittenPerCall))
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl, unless the object resource
+// specifies the acl property, when it defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsRewriteCall) Projection(projection string) *ObjectsRewriteCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// RewriteToken sets the optional parameter "rewriteToken": Include this
+// field (from the previous rewrite response) on each rewrite request
+// after the first one, until the rewrite response 'done' flag is true.
+// Calls that provide a rewriteToken can omit all other request fields,
+// but if included those fields must match the values provided in the
+// first rewrite request.
+func (c *ObjectsRewriteCall) RewriteToken(rewriteToken string) *ObjectsRewriteCall {
+	c.urlParams_.Set("rewriteToken", rewriteToken)
+	return c
+}
+
+// SourceGeneration sets the optional parameter "sourceGeneration": If
+// present, selects a specific revision of the source object (as opposed
+// to the latest version, the default).
+func (c *ObjectsRewriteCall) SourceGeneration(sourceGeneration int64) *ObjectsRewriteCall {
+	c.urlParams_.Set("sourceGeneration", fmt.Sprint(sourceGeneration))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsRewriteCall) Fields(s ...googleapi.Field) *ObjectsRewriteCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectsRewriteCall) Context(ctx context.Context) *ObjectsRewriteCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsRewriteCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{sourceBucket}/o/{sourceObject}/rewriteTo/b/{destinationBucket}/o/{destinationObject}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"sourceBucket":      c.sourceBucket,
+		"sourceObject":      c.sourceObject,
+		"destinationBucket": c.destinationBucket,
+		"destinationObject": c.destinationObject,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objects.rewrite" call.
+// Exactly one of *RewriteResponse or error will be non-nil. Any non-2xx
+// status code is an error. Response headers are in either
+// *RewriteResponse.ServerResponse.Header or (if a response was returned
+// at all) in error.(*googleapi.Error).Header. Use
+// googleapi.IsNotModified to check whether the returned error was
+// because http.StatusNotModified was returned.
+func (c *ObjectsRewriteCall) Do(opts ...googleapi.CallOption) (*RewriteResponse, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &RewriteResponse{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Rewrites a source object to a destination object. Optionally overrides metadata.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.objects.rewrite",
+	//   "parameterOrder": [
+	//     "sourceBucket",
+	//     "sourceObject",
+	//     "destinationBucket",
+	//     "destinationObject"
+	//   ],
+	//   "parameters": {
+	//     "destinationBucket": {
+	//       "description": "Name of the bucket in which to store the new object. Overrides the provided object metadata's bucket value, if any.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "destinationObject": {
+	//       "description": "Name of the new object. Required when the object metadata is not otherwise provided. Overrides the object metadata's name value, if any. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "destinationPredefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to the destination object.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the destination object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifSourceMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the source object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "maxBytesRewrittenPerCall": {
+	//       "description": "The maximum number of bytes that will be rewritten per rewrite request. Most callers shouldn't need to specify this parameter - it is primarily in place to support testing. If specified the value must be an integral multiple of 1 MiB (1048576). Also, this only applies to requests where the source and destination span locations and/or storage classes. Finally, this value must not change across rewrite calls else you'll get an error that the rewriteToken is invalid.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl, unless the object resource specifies the acl property, when it defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "rewriteToken": {
+	//       "description": "Include this field (from the previous rewrite response) on each rewrite request after the first one, until the rewrite response 'done' flag is true. Calls that provide a rewriteToken can omit all other request fields, but if included those fields must match the values provided in the first rewrite request.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "sourceBucket": {
+	//       "description": "Name of the bucket in which to find the source object.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "sourceGeneration": {
+	//       "description": "If present, selects a specific revision of the source object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "sourceObject": {
+	//       "description": "Name of the source object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{sourceBucket}/o/{sourceObject}/rewriteTo/b/{destinationBucket}/o/{destinationObject}",
+	//   "request": {
+	//     "$ref": "Object"
+	//   },
+	//   "response": {
+	//     "$ref": "RewriteResponse"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ]
+	// }
+
+}
+
+// method id "storage.objects.update":
+
+type ObjectsUpdateCall struct {
+	s          *Service
+	bucket     string
+	object     string
+	object2    *Object
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// Update: Updates an object's metadata.
+func (r *ObjectsService) Update(bucket string, object string, object2 *Object) *ObjectsUpdateCall {
+	c := &ObjectsUpdateCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.object = object
+	c.object2 = object2
+	return c
+}
+
+// Generation sets the optional parameter "generation": If present,
+// selects a specific revision of this object (as opposed to the latest
+// version, the default).
+func (c *ObjectsUpdateCall) Generation(generation int64) *ObjectsUpdateCall {
+	c.urlParams_.Set("generation", fmt.Sprint(generation))
+	return c
+}
+
+// IfGenerationMatch sets the optional parameter "ifGenerationMatch":
+// Makes the operation conditional on whether the object's current
+// generation matches the given value.
+func (c *ObjectsUpdateCall) IfGenerationMatch(ifGenerationMatch int64) *ObjectsUpdateCall {
+	c.urlParams_.Set("ifGenerationMatch", fmt.Sprint(ifGenerationMatch))
+	return c
+}
+
+// IfGenerationNotMatch sets the optional parameter
+// "ifGenerationNotMatch": Makes the operation conditional on whether
+// the object's current generation does not match the given value.
+func (c *ObjectsUpdateCall) IfGenerationNotMatch(ifGenerationNotMatch int64) *ObjectsUpdateCall {
+	c.urlParams_.Set("ifGenerationNotMatch", fmt.Sprint(ifGenerationNotMatch))
+	return c
+}
+
+// IfMetagenerationMatch sets the optional parameter
+// "ifMetagenerationMatch": Makes the operation conditional on whether
+// the object's current metageneration matches the given value.
+func (c *ObjectsUpdateCall) IfMetagenerationMatch(ifMetagenerationMatch int64) *ObjectsUpdateCall {
+	c.urlParams_.Set("ifMetagenerationMatch", fmt.Sprint(ifMetagenerationMatch))
+	return c
+}
+
+// IfMetagenerationNotMatch sets the optional parameter
+// "ifMetagenerationNotMatch": Makes the operation conditional on
+// whether the object's current metageneration does not match the given
+// value.
+func (c *ObjectsUpdateCall) IfMetagenerationNotMatch(ifMetagenerationNotMatch int64) *ObjectsUpdateCall {
+	c.urlParams_.Set("ifMetagenerationNotMatch", fmt.Sprint(ifMetagenerationNotMatch))
+	return c
+}
+
+// PredefinedAcl sets the optional parameter "predefinedAcl": Apply a
+// predefined set of access controls to this object.
+//
+// Possible values:
+//   "authenticatedRead" - Object owner gets OWNER access, and
+// allAuthenticatedUsers get READER access.
+//   "bucketOwnerFullControl" - Object owner gets OWNER access, and
+// project team owners get OWNER access.
+//   "bucketOwnerRead" - Object owner gets OWNER access, and project
+// team owners get READER access.
+//   "private" - Object owner gets OWNER access.
+//   "projectPrivate" - Object owner gets OWNER access, and project team
+// members get access according to their roles.
+//   "publicRead" - Object owner gets OWNER access, and allUsers get
+// READER access.
+func (c *ObjectsUpdateCall) PredefinedAcl(predefinedAcl string) *ObjectsUpdateCall {
+	c.urlParams_.Set("predefinedAcl", predefinedAcl)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to full.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsUpdateCall) Projection(projection string) *ObjectsUpdateCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsUpdateCall) Fields(s ...googleapi.Field) *ObjectsUpdateCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do and Download
+// methods. Any pending HTTP request will be aborted if the provided
+// context is canceled.
+func (c *ObjectsUpdateCall) Context(ctx context.Context) *ObjectsUpdateCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsUpdateCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object2)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("PUT", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+		"object": c.object,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Download fetches the API endpoint's "media" value, instead of the normal
+// API response value. If the returned error is nil, the Response is guaranteed to
+// have a 2xx status code. Callers must close the Response.Body as usual.
+func (c *ObjectsUpdateCall) Download(opts ...googleapi.CallOption) (*http.Response, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("media")
+	if err != nil {
+		return nil, err
+	}
+	if err := googleapi.CheckMediaResponse(res); err != nil {
+		res.Body.Close()
+		return nil, err
+	}
+	return res, nil
+}
+
+// Do executes the "storage.objects.update" call.
+// Exactly one of *Object or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Object.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsUpdateCall) Do(opts ...googleapi.CallOption) (*Object, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Object{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Updates an object's metadata.",
+	//   "httpMethod": "PUT",
+	//   "id": "storage.objects.update",
+	//   "parameterOrder": [
+	//     "bucket",
+	//     "object"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which the object resides.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "generation": {
+	//       "description": "If present, selects a specific revision of this object (as opposed to the latest version, the default).",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifGenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current generation does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration matches the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "ifMetagenerationNotMatch": {
+	//       "description": "Makes the operation conditional on whether the object's current metageneration does not match the given value.",
+	//       "format": "int64",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "object": {
+	//       "description": "Name of the object. For information about how to URL encode object names to be path safe, see Encoding URI Path Parts.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "predefinedAcl": {
+	//       "description": "Apply a predefined set of access controls to this object.",
+	//       "enum": [
+	//         "authenticatedRead",
+	//         "bucketOwnerFullControl",
+	//         "bucketOwnerRead",
+	//         "private",
+	//         "projectPrivate",
+	//         "publicRead"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Object owner gets OWNER access, and allAuthenticatedUsers get READER access.",
+	//         "Object owner gets OWNER access, and project team owners get OWNER access.",
+	//         "Object owner gets OWNER access, and project team owners get READER access.",
+	//         "Object owner gets OWNER access.",
+	//         "Object owner gets OWNER access, and project team members get access according to their roles.",
+	//         "Object owner gets OWNER access, and allUsers get READER access."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to full.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/{object}",
+	//   "request": {
+	//     "$ref": "Object"
+	//   },
+	//   "response": {
+	//     "$ref": "Object"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/devstorage.full_control"
+	//   ],
+	//   "supportsMediaDownload": true,
+	//   "useMediaDownloadService": true
+	// }
+
+}
+
+// method id "storage.objects.watchAll":
+
+type ObjectsWatchAllCall struct {
+	s          *Service
+	bucket     string
+	channel    *Channel
+	urlParams_ gensupport.URLParams
+	ctx_       context.Context
+}
+
+// WatchAll: Watch for changes on all objects in a bucket.
+func (r *ObjectsService) WatchAll(bucket string, channel *Channel) *ObjectsWatchAllCall {
+	c := &ObjectsWatchAllCall{s: r.s, urlParams_: make(gensupport.URLParams)}
+	c.bucket = bucket
+	c.channel = channel
+	return c
+}
+
+// Delimiter sets the optional parameter "delimiter": Returns results in
+// a directory-like mode. items will contain only objects whose names,
+// aside from the prefix, do not contain delimiter. Objects whose names,
+// aside from the prefix, contain delimiter will have their name,
+// truncated after the delimiter, returned in prefixes. Duplicate
+// prefixes are omitted.
+func (c *ObjectsWatchAllCall) Delimiter(delimiter string) *ObjectsWatchAllCall {
+	c.urlParams_.Set("delimiter", delimiter)
+	return c
+}
+
+// MaxResults sets the optional parameter "maxResults": Maximum number
+// of items plus prefixes to return. As duplicate prefixes are omitted,
+// fewer total results may be returned than requested. The default value
+// of this parameter is 1,000 items.
+func (c *ObjectsWatchAllCall) MaxResults(maxResults int64) *ObjectsWatchAllCall {
+	c.urlParams_.Set("maxResults", fmt.Sprint(maxResults))
+	return c
+}
+
+// PageToken sets the optional parameter "pageToken": A
+// previously-returned page token representing part of the larger set of
+// results to view.
+func (c *ObjectsWatchAllCall) PageToken(pageToken string) *ObjectsWatchAllCall {
+	c.urlParams_.Set("pageToken", pageToken)
+	return c
+}
+
+// Prefix sets the optional parameter "prefix": Filter results to
+// objects whose names begin with this prefix.
+func (c *ObjectsWatchAllCall) Prefix(prefix string) *ObjectsWatchAllCall {
+	c.urlParams_.Set("prefix", prefix)
+	return c
+}
+
+// Projection sets the optional parameter "projection": Set of
+// properties to return. Defaults to noAcl.
+//
+// Possible values:
+//   "full" - Include all properties.
+//   "noAcl" - Omit the owner, acl property.
+func (c *ObjectsWatchAllCall) Projection(projection string) *ObjectsWatchAllCall {
+	c.urlParams_.Set("projection", projection)
+	return c
+}
+
+// Versions sets the optional parameter "versions": If true, lists all
+// versions of an object as distinct results. The default is false. For
+// more information, see Object Versioning.
+func (c *ObjectsWatchAllCall) Versions(versions bool) *ObjectsWatchAllCall {
+	c.urlParams_.Set("versions", fmt.Sprint(versions))
+	return c
+}
+
+// Fields allows partial responses to be retrieved. See
+// https://developers.google.com/gdata/docs/2.0/basics#PartialResponse
+// for more information.
+func (c *ObjectsWatchAllCall) Fields(s ...googleapi.Field) *ObjectsWatchAllCall {
+	c.urlParams_.Set("fields", googleapi.CombineFields(s))
+	return c
+}
+
+// Context sets the context to be used in this call's Do method. Any
+// pending HTTP request will be aborted if the provided context is
+// canceled.
+func (c *ObjectsWatchAllCall) Context(ctx context.Context) *ObjectsWatchAllCall {
+	c.ctx_ = ctx
+	return c
+}
+
+func (c *ObjectsWatchAllCall) doRequest(alt string) (*http.Response, error) {
+	reqHeaders := make(http.Header)
+	reqHeaders.Set("User-Agent", c.s.userAgent())
+	var body io.Reader = nil
+	body, err := googleapi.WithoutDataWrapper.JSONReader(c.channel)
+	if err != nil {
+		return nil, err
+	}
+	reqHeaders.Set("Content-Type", "application/json")
+	c.urlParams_.Set("alt", alt)
+	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/watch")
+	urls += "?" + c.urlParams_.Encode()
+	req, _ := http.NewRequest("POST", urls, body)
+	req.Header = reqHeaders
+	googleapi.Expand(req.URL, map[string]string{
+		"bucket": c.bucket,
+	})
+	if c.ctx_ != nil {
+		return ctxhttp.Do(c.ctx_, c.s.client, req)
+	}
+	return c.s.client.Do(req)
+}
+
+// Do executes the "storage.objects.watchAll" call.
+// Exactly one of *Channel or error will be non-nil. Any non-2xx status
+// code is an error. Response headers are in either
+// *Channel.ServerResponse.Header or (if a response was returned at all)
+// in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to
+// check whether the returned error was because http.StatusNotModified
+// was returned.
+func (c *ObjectsWatchAllCall) Do(opts ...googleapi.CallOption) (*Channel, error) {
+	gensupport.SetOptions(c.urlParams_, opts...)
+	res, err := c.doRequest("json")
+	if res != nil && res.StatusCode == http.StatusNotModified {
+		if res.Body != nil {
+			res.Body.Close()
+		}
+		return nil, &googleapi.Error{
+			Code:   res.StatusCode,
+			Header: res.Header,
+		}
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer googleapi.CloseBody(res)
+	if err := googleapi.CheckResponse(res); err != nil {
+		return nil, err
+	}
+	ret := &Channel{
+		ServerResponse: googleapi.ServerResponse{
+			Header:         res.Header,
+			HTTPStatusCode: res.StatusCode,
+		},
+	}
+	if err := json.NewDecoder(res.Body).Decode(&ret); err != nil {
+		return nil, err
+	}
+	return ret, nil
+	// {
+	//   "description": "Watch for changes on all objects in a bucket.",
+	//   "httpMethod": "POST",
+	//   "id": "storage.objects.watchAll",
+	//   "parameterOrder": [
+	//     "bucket"
+	//   ],
+	//   "parameters": {
+	//     "bucket": {
+	//       "description": "Name of the bucket in which to look for objects.",
+	//       "location": "path",
+	//       "required": true,
+	//       "type": "string"
+	//     },
+	//     "delimiter": {
+	//       "description": "Returns results in a directory-like mode. items will contain only objects whose names, aside from the prefix, do not contain delimiter. Objects whose names, aside from the prefix, contain delimiter will have their name, truncated after the delimiter, returned in prefixes. Duplicate prefixes are omitted.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "maxResults": {
+	//       "description": "Maximum number of items plus prefixes to return. As duplicate prefixes are omitted, fewer total results may be returned than requested. The default value of this parameter is 1,000 items.",
+	//       "format": "uint32",
+	//       "location": "query",
+	//       "minimum": "0",
+	//       "type": "integer"
+	//     },
+	//     "pageToken": {
+	//       "description": "A previously-returned page token representing part of the larger set of results to view.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "prefix": {
+	//       "description": "Filter results to objects whose names begin with this prefix.",
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "projection": {
+	//       "description": "Set of properties to return. Defaults to noAcl.",
+	//       "enum": [
+	//         "full",
+	//         "noAcl"
+	//       ],
+	//       "enumDescriptions": [
+	//         "Include all properties.",
+	//         "Omit the owner, acl property."
+	//       ],
+	//       "location": "query",
+	//       "type": "string"
+	//     },
+	//     "versions": {
+	//       "description": "If true, lists all versions of an object as distinct results. The default is false. For more information, see Object Versioning.",
+	//       "location": "query",
+	//       "type": "boolean"
+	//     }
+	//   },
+	//   "path": "b/{bucket}/o/watch",
+	//   "request": {
+	//     "$ref": "Channel",
+	//     "parameterName": "resource"
+	//   },
+	//   "response": {
+	//     "$ref": "Channel"
+	//   },
+	//   "scopes": [
+	//     "https://www.googleapis.com/auth/cloud-platform",
+	//     "https://www.googleapis.com/auth/cloud-platform.read-only",
+	//     "https://www.googleapis.com/auth/devstorage.full_control",
+	//     "https://www.googleapis.com/auth/devstorage.read_only",
+	//     "https://www.googleapis.com/auth/devstorage.read_write"
+	//   ],
+	//   "supportsSubscription": true
+	// }
+
+}
diff --git a/vendor/google.golang.org/appengine/LICENSE b/vendor/google.golang.org/appengine/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/vendor/google.golang.org/appengine/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
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+
+   7. Disclaimer of Warranty. Unless required by applicable law or
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      whether in tort (including negligence), contract, or otherwise,
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+       http://www.apache.org/licenses/LICENSE-2.0
+
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+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/vendor/google.golang.org/appengine/README.md b/vendor/google.golang.org/appengine/README.md
new file mode 100644
index 0000000..1efd955
--- /dev/null
+++ b/vendor/google.golang.org/appengine/README.md
@@ -0,0 +1,71 @@
+# Go App Engine packages
+
+[![Build Status](https://travis-ci.org/golang/appengine.svg)](https://travis-ci.org/golang/appengine)
+
+This repository supports the Go runtime on App Engine,
+including both the standard App Engine and the
+"App Engine flexible environment" (formerly known as "Managed VMs").
+It provides APIs for interacting with App Engine services.
+Its canonical import path is `google.golang.org/appengine`.
+
+See https://cloud.google.com/appengine/docs/go/
+for more information.
+
+File issue reports and feature requests on the [Google App Engine issue
+tracker](https://code.google.com/p/googleappengine/issues/entry?template=Go%20defect).
+
+## Directory structure
+The top level directory of this repository is the `appengine` package. It
+contains the
+basic APIs (e.g. `appengine.NewContext`) that apply across APIs. Specific API
+packages are in subdirectories (e.g. `datastore`).
+
+There is an `internal` subdirectory that contains service protocol buffers,
+plus packages required for connectivity to make API calls. App Engine apps
+should not directly import any package under `internal`.
+
+## Updating a Go App Engine app
+
+This section describes how to update an older Go App Engine app to use
+these packages. A provided tool, `aefix`, can help automate steps 2 and 3
+(run `go get google.golang.org/appengine/cmd/aefix` to install it), but
+read the details below since `aefix` can't perform all the changes.
+
+### 1. Update YAML files (App Engine flexible environment / Managed VMs only)
+
+The `app.yaml` file (and YAML files for modules) should have these new lines added:
+```
+vm: true
+```
+See https://cloud.google.com/appengine/docs/go/modules/#Go_Instance_scaling_and_class for details.
+
+### 2. Update import paths
+
+The import paths for App Engine packages are now fully qualified, based at `google.golang.org/appengine`.
+You will need to update your code to use import paths starting with that; for instance,
+code importing `appengine/datastore` will now need to import `google.golang.org/appengine/datastore`.
+
+### 3. Update code using deprecated, removed or modified APIs
+
+Most App Engine services are available with exactly the same API.
+A few APIs were cleaned up, and some are not available yet.
+This list summarises the differences:
+
+* `appengine.Context` has been replaced with the `Context` type from `golang.org/x/net/context`.
+* Logging methods that were on `appengine.Context` are now functions in `google.golang.org/appengine/log`.
+* `appengine.Timeout` has been removed. Use `context.WithTimeout` instead.
+* `appengine.Datacenter` now takes a `context.Context` argument.
+* `datastore.PropertyLoadSaver` has been simplified to use slices in place of channels.
+* `delay.Call` now returns an error.
+* `search.FieldLoadSaver` now handles document metadata.
+* `urlfetch.Transport` no longer has a Deadline field; set a deadline on the
+  `context.Context` instead.
+* `aetest` no longer declares its own Context type, and uses the standard one instead.
+* `taskqueue.QueueStats` no longer takes a maxTasks argument. That argument has been
+  deprecated and unused for a long time.
+* `appengine.BackendHostname` and `appengine.BackendInstance` were for the deprecated backends feature.
+  Use `appengine.ModuleHostname`and `appengine.ModuleName` instead.
+* Most of `appengine/file` and parts of `appengine/blobstore` are deprecated.
+  Use [Google Cloud Storage](https://godoc.org/google.golang.org/cloud/storage) instead.
+* `appengine/socket` is not required on App Engine flexible environment / Managed VMs.
+  Use the standard `net` package instead.
diff --git a/vendor/google.golang.org/appengine/appengine.go b/vendor/google.golang.org/appengine/appengine.go
new file mode 100644
index 0000000..aa23a7a
--- /dev/null
+++ b/vendor/google.golang.org/appengine/appengine.go
@@ -0,0 +1,76 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// Package appengine provides basic functionality for Google App Engine.
+//
+// For more information on how to write Go apps for Google App Engine, see:
+// https://cloud.google.com/appengine/docs/go/
+package appengine // import "google.golang.org/appengine"
+
+import (
+	"net/http"
+
+	"github.com/golang/protobuf/proto"
+	"golang.org/x/net/context"
+
+	"google.golang.org/appengine/internal"
+)
+
+// IsDevAppServer reports whether the App Engine app is running in the
+// development App Server.
+func IsDevAppServer() bool {
+	return internal.IsDevAppServer()
+}
+
+// NewContext returns a context for an in-flight HTTP request.
+// This function is cheap.
+func NewContext(req *http.Request) context.Context {
+	return WithContext(context.Background(), req)
+}
+
+// WithContext returns a copy of the parent context
+// and associates it with an in-flight HTTP request.
+// This function is cheap.
+func WithContext(parent context.Context, req *http.Request) context.Context {
+	return internal.WithContext(parent, req)
+}
+
+// TODO(dsymonds): Add a Call function here? Otherwise other packages can't access internal.Call.
+
+// BlobKey is a key for a blobstore blob.
+//
+// Conceptually, this type belongs in the blobstore package, but it lives in
+// the appengine package to avoid a circular dependency: blobstore depends on
+// datastore, and datastore needs to refer to the BlobKey type.
+type BlobKey string
+
+// GeoPoint represents a location as latitude/longitude in degrees.
+type GeoPoint struct {
+	Lat, Lng float64
+}
+
+// Valid returns whether a GeoPoint is within [-90, 90] latitude and [-180, 180] longitude.
+func (g GeoPoint) Valid() bool {
+	return -90 <= g.Lat && g.Lat <= 90 && -180 <= g.Lng && g.Lng <= 180
+}
+
+// APICallFunc defines a function type for handling an API call.
+// See WithCallOverride.
+type APICallFunc func(ctx context.Context, service, method string, in, out proto.Message) error
+
+// WithAPICallFunc returns a copy of the parent context
+// that will cause API calls to invoke f instead of their normal operation.
+//
+// This is intended for advanced users only.
+func WithAPICallFunc(ctx context.Context, f APICallFunc) context.Context {
+	return internal.WithCallOverride(ctx, internal.CallOverrideFunc(f))
+}
+
+// APICall performs an API call.
+//
+// This is not intended for general use; it is exported for use in conjunction
+// with WithAPICallFunc.
+func APICall(ctx context.Context, service, method string, in, out proto.Message) error {
+	return internal.Call(ctx, service, method, in, out)
+}
diff --git a/vendor/google.golang.org/appengine/appengine_vm.go b/vendor/google.golang.org/appengine/appengine_vm.go
new file mode 100644
index 0000000..e4399ed
--- /dev/null
+++ b/vendor/google.golang.org/appengine/appengine_vm.go
@@ -0,0 +1,56 @@
+// Copyright 2015 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build !appengine
+
+package appengine
+
+import (
+	"golang.org/x/net/context"
+
+	"google.golang.org/appengine/internal"
+)
+
+// The comment below must not be changed.
+// It is used by go-app-builder to recognise that this package has
+// the Main function to use in the synthetic main.
+//   The gophers party all night; the rabbits provide the beats.
+
+// Main is the principal entry point for an app running in App Engine "flexible environment".
+// It installs a trivial health checker if one isn't already registered,
+// and starts listening on port 8080 (overridden by the $PORT environment
+// variable).
+//
+// See https://cloud.google.com/appengine/docs/flexible/custom-runtimes#health_check_requests
+// for details on how to do your own health checking.
+//
+// Main never returns.
+//
+// Main is designed so that the app's main package looks like this:
+//
+//      package main
+//
+//      import (
+//              "google.golang.org/appengine"
+//
+//              _ "myapp/package0"
+//              _ "myapp/package1"
+//      )
+//
+//      func main() {
+//              appengine.Main()
+//      }
+//
+// The "myapp/packageX" packages are expected to register HTTP handlers
+// in their init functions.
+func Main() {
+	internal.Main()
+}
+
+// BackgroundContext returns a context not associated with a request.
+// This should only be used when not servicing a request.
+// This only works in App Engine "flexible environment".
+func BackgroundContext() context.Context {
+	return internal.BackgroundContext()
+}
diff --git a/vendor/google.golang.org/appengine/errors.go b/vendor/google.golang.org/appengine/errors.go
new file mode 100644
index 0000000..16d0772
--- /dev/null
+++ b/vendor/google.golang.org/appengine/errors.go
@@ -0,0 +1,46 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// This file provides error functions for common API failure modes.
+
+package appengine
+
+import (
+	"fmt"
+
+	"google.golang.org/appengine/internal"
+)
+
+// IsOverQuota reports whether err represents an API call failure
+// due to insufficient available quota.
+func IsOverQuota(err error) bool {
+	callErr, ok := err.(*internal.CallError)
+	return ok && callErr.Code == 4
+}
+
+// MultiError is returned by batch operations when there are errors with
+// particular elements. Errors will be in a one-to-one correspondence with
+// the input elements; successful elements will have a nil entry.
+type MultiError []error
+
+func (m MultiError) Error() string {
+	s, n := "", 0
+	for _, e := range m {
+		if e != nil {
+			if n == 0 {
+				s = e.Error()
+			}
+			n++
+		}
+	}
+	switch n {
+	case 0:
+		return "(0 errors)"
+	case 1:
+		return s
+	case 2:
+		return s + " (and 1 other error)"
+	}
+	return fmt.Sprintf("%s (and %d other errors)", s, n-1)
+}
diff --git a/vendor/google.golang.org/appengine/identity.go b/vendor/google.golang.org/appengine/identity.go
new file mode 100644
index 0000000..b8dcf8f
--- /dev/null
+++ b/vendor/google.golang.org/appengine/identity.go
@@ -0,0 +1,142 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package appengine
+
+import (
+	"time"
+
+	"golang.org/x/net/context"
+
+	"google.golang.org/appengine/internal"
+	pb "google.golang.org/appengine/internal/app_identity"
+	modpb "google.golang.org/appengine/internal/modules"
+)
+
+// AppID returns the application ID for the current application.
+// The string will be a plain application ID (e.g. "appid"), with a
+// domain prefix for custom domain deployments (e.g. "example.com:appid").
+func AppID(c context.Context) string { return internal.AppID(c) }
+
+// DefaultVersionHostname returns the standard hostname of the default version
+// of the current application (e.g. "my-app.appspot.com"). This is suitable for
+// use in constructing URLs.
+func DefaultVersionHostname(c context.Context) string {
+	return internal.DefaultVersionHostname(c)
+}
+
+// ModuleName returns the module name of the current instance.
+func ModuleName(c context.Context) string {
+	return internal.ModuleName(c)
+}
+
+// ModuleHostname returns a hostname of a module instance.
+// If module is the empty string, it refers to the module of the current instance.
+// If version is empty, it refers to the version of the current instance if valid,
+// or the default version of the module of the current instance.
+// If instance is empty, ModuleHostname returns the load-balancing hostname.
+func ModuleHostname(c context.Context, module, version, instance string) (string, error) {
+	req := &modpb.GetHostnameRequest{}
+	if module != "" {
+		req.Module = &module
+	}
+	if version != "" {
+		req.Version = &version
+	}
+	if instance != "" {
+		req.Instance = &instance
+	}
+	res := &modpb.GetHostnameResponse{}
+	if err := internal.Call(c, "modules", "GetHostname", req, res); err != nil {
+		return "", err
+	}
+	return *res.Hostname, nil
+}
+
+// VersionID returns the version ID for the current application.
+// It will be of the form "X.Y", where X is specified in app.yaml,
+// and Y is a number generated when each version of the app is uploaded.
+// It does not include a module name.
+func VersionID(c context.Context) string { return internal.VersionID(c) }
+
+// InstanceID returns a mostly-unique identifier for this instance.
+func InstanceID() string { return internal.InstanceID() }
+
+// Datacenter returns an identifier for the datacenter that the instance is running in.
+func Datacenter(c context.Context) string { return internal.Datacenter(c) }
+
+// ServerSoftware returns the App Engine release version.
+// In production, it looks like "Google App Engine/X.Y.Z".
+// In the development appserver, it looks like "Development/X.Y".
+func ServerSoftware() string { return internal.ServerSoftware() }
+
+// RequestID returns a string that uniquely identifies the request.
+func RequestID(c context.Context) string { return internal.RequestID(c) }
+
+// AccessToken generates an OAuth2 access token for the specified scopes on
+// behalf of service account of this application. This token will expire after
+// the returned time.
+func AccessToken(c context.Context, scopes ...string) (token string, expiry time.Time, err error) {
+	req := &pb.GetAccessTokenRequest{Scope: scopes}
+	res := &pb.GetAccessTokenResponse{}
+
+	err = internal.Call(c, "app_identity_service", "GetAccessToken", req, res)
+	if err != nil {
+		return "", time.Time{}, err
+	}
+	return res.GetAccessToken(), time.Unix(res.GetExpirationTime(), 0), nil
+}
+
+// Certificate represents a public certificate for the app.
+type Certificate struct {
+	KeyName string
+	Data    []byte // PEM-encoded X.509 certificate
+}
+
+// PublicCertificates retrieves the public certificates for the app.
+// They can be used to verify a signature returned by SignBytes.
+func PublicCertificates(c context.Context) ([]Certificate, error) {
+	req := &pb.GetPublicCertificateForAppRequest{}
+	res := &pb.GetPublicCertificateForAppResponse{}
+	if err := internal.Call(c, "app_identity_service", "GetPublicCertificatesForApp", req, res); err != nil {
+		return nil, err
+	}
+	var cs []Certificate
+	for _, pc := range res.PublicCertificateList {
+		cs = append(cs, Certificate{
+			KeyName: pc.GetKeyName(),
+			Data:    []byte(pc.GetX509CertificatePem()),
+		})
+	}
+	return cs, nil
+}
+
+// ServiceAccount returns a string representing the service account name, in
+// the form of an email address (typically app_id@appspot.gserviceaccount.com).
+func ServiceAccount(c context.Context) (string, error) {
+	req := &pb.GetServiceAccountNameRequest{}
+	res := &pb.GetServiceAccountNameResponse{}
+
+	err := internal.Call(c, "app_identity_service", "GetServiceAccountName", req, res)
+	if err != nil {
+		return "", err
+	}
+	return res.GetServiceAccountName(), err
+}
+
+// SignBytes signs bytes using a private key unique to your application.
+func SignBytes(c context.Context, bytes []byte) (keyName string, signature []byte, err error) {
+	req := &pb.SignForAppRequest{BytesToSign: bytes}
+	res := &pb.SignForAppResponse{}
+
+	if err := internal.Call(c, "app_identity_service", "SignForApp", req, res); err != nil {
+		return "", nil, err
+	}
+	return res.GetKeyName(), res.GetSignatureBytes(), nil
+}
+
+func init() {
+	internal.RegisterErrorCodeMap("app_identity_service", pb.AppIdentityServiceError_ErrorCode_name)
+	internal.RegisterErrorCodeMap("modules", modpb.ModulesServiceError_ErrorCode_name)
+}
diff --git a/vendor/google.golang.org/appengine/internal/api.go b/vendor/google.golang.org/appengine/internal/api.go
new file mode 100644
index 0000000..a2a4b4c
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/api.go
@@ -0,0 +1,509 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build !appengine
+
+package internal
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net"
+	"net/http"
+	"net/url"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	netcontext "golang.org/x/net/context"
+
+	remotepb "google.golang.org/appengine/internal/remote_api"
+)
+
+const (
+	apiPath = "/rpc_http"
+)
+
+var (
+	// Incoming headers.
+	ticketHeader       = http.CanonicalHeaderKey("X-AppEngine-API-Ticket")
+	dapperHeader       = http.CanonicalHeaderKey("X-Google-DapperTraceInfo")
+	traceHeader        = http.CanonicalHeaderKey("X-Cloud-Trace-Context")
+	curNamespaceHeader = http.CanonicalHeaderKey("X-AppEngine-Current-Namespace")
+	userIPHeader       = http.CanonicalHeaderKey("X-AppEngine-User-IP")
+	remoteAddrHeader   = http.CanonicalHeaderKey("X-AppEngine-Remote-Addr")
+
+	// Outgoing headers.
+	apiEndpointHeader      = http.CanonicalHeaderKey("X-Google-RPC-Service-Endpoint")
+	apiEndpointHeaderValue = []string{"app-engine-apis"}
+	apiMethodHeader        = http.CanonicalHeaderKey("X-Google-RPC-Service-Method")
+	apiMethodHeaderValue   = []string{"/VMRemoteAPI.CallRemoteAPI"}
+	apiDeadlineHeader      = http.CanonicalHeaderKey("X-Google-RPC-Service-Deadline")
+	apiContentType         = http.CanonicalHeaderKey("Content-Type")
+	apiContentTypeValue    = []string{"application/octet-stream"}
+
+	apiHTTPClient = &http.Client{
+		Transport: &http.Transport{
+			Proxy: http.ProxyFromEnvironment,
+			Dial:  limitDial,
+		},
+	}
+)
+
+func apiURL() *url.URL {
+	host, port := "appengine.googleapis.internal", "10001"
+	if h := os.Getenv("API_HOST"); h != "" {
+		host = h
+	}
+	if p := os.Getenv("API_PORT"); p != "" {
+		port = p
+	}
+	return &url.URL{
+		Scheme: "http",
+		Host:   host + ":" + port,
+		Path:   apiPath,
+	}
+}
+
+func handleHTTP(w http.ResponseWriter, r *http.Request) {
+	c := &context{
+		req:       r,
+		outHeader: w.Header(),
+		apiURL:    apiURL(),
+		logger:    globalLogger(),
+	}
+
+	ctxs.Lock()
+	ctxs.m[r] = c
+	ctxs.Unlock()
+	defer func() {
+		ctxs.Lock()
+		delete(ctxs.m, r)
+		ctxs.Unlock()
+	}()
+
+	// Patch up RemoteAddr so it looks reasonable.
+	if addr := r.Header.Get(userIPHeader); addr != "" {
+		r.RemoteAddr = addr
+	} else if addr = r.Header.Get(remoteAddrHeader); addr != "" {
+		r.RemoteAddr = addr
+	} else {
+		// Should not normally reach here, but pick a sensible default anyway.
+		r.RemoteAddr = "127.0.0.1"
+	}
+	// The address in the headers will most likely be of these forms:
+	//	123.123.123.123
+	//	2001:db8::1
+	// net/http.Request.RemoteAddr is specified to be in "IP:port" form.
+	if _, _, err := net.SplitHostPort(r.RemoteAddr); err != nil {
+		// Assume the remote address is only a host; add a default port.
+		r.RemoteAddr = net.JoinHostPort(r.RemoteAddr, "80")
+	}
+
+	executeRequestSafely(c, r)
+	c.outHeader = nil // make sure header changes aren't respected any more
+
+	// Avoid nil Write call if c.Write is never called.
+	if c.outCode != 0 {
+		w.WriteHeader(c.outCode)
+	}
+	if c.outBody != nil {
+		w.Write(c.outBody)
+	}
+}
+
+func executeRequestSafely(c *context, r *http.Request) {
+	defer func() {
+		if x := recover(); x != nil {
+			logf(c, 4, "%s", renderPanic(x)) // 4 == critical
+			c.outCode = 500
+		}
+	}()
+
+	http.DefaultServeMux.ServeHTTP(c, r)
+}
+
+func renderPanic(x interface{}) string {
+	buf := make([]byte, 16<<10) // 16 KB should be plenty
+	buf = buf[:runtime.Stack(buf, false)]
+
+	// Remove the first few stack frames:
+	//   this func
+	//   the recover closure in the caller
+	// That will root the stack trace at the site of the panic.
+	const (
+		skipStart  = "internal.renderPanic"
+		skipFrames = 2
+	)
+	start := bytes.Index(buf, []byte(skipStart))
+	p := start
+	for i := 0; i < skipFrames*2 && p+1 < len(buf); i++ {
+		p = bytes.IndexByte(buf[p+1:], '\n') + p + 1
+		if p < 0 {
+			break
+		}
+	}
+	if p >= 0 {
+		// buf[start:p+1] is the block to remove.
+		// Copy buf[p+1:] over buf[start:] and shrink buf.
+		copy(buf[start:], buf[p+1:])
+		buf = buf[:len(buf)-(p+1-start)]
+	}
+
+	// Add panic heading.
+	head := fmt.Sprintf("panic: %v\n\n", x)
+	if len(head) > len(buf) {
+		// Extremely unlikely to happen.
+		return head
+	}
+	copy(buf[len(head):], buf)
+	copy(buf, head)
+
+	return string(buf)
+}
+
+var ctxs = struct {
+	sync.Mutex
+	m  map[*http.Request]*context
+	bg *context // background context, lazily initialized
+	// dec is used by tests to decorate the netcontext.Context returned
+	// for a given request. This allows tests to add overrides (such as
+	// WithAppIDOverride) to the context. The map is nil outside tests.
+	dec map[*http.Request]func(netcontext.Context) netcontext.Context
+}{
+	m: make(map[*http.Request]*context),
+}
+
+// context represents the context of an in-flight HTTP request.
+// It implements the appengine.Context and http.ResponseWriter interfaces.
+type context struct {
+	req    *http.Request
+	logger *jsonLogger
+
+	outCode   int
+	outHeader http.Header
+	outBody   []byte
+
+	apiURL *url.URL
+}
+
+var contextKey = "holds a *context"
+
+func fromContext(ctx netcontext.Context) *context {
+	c, _ := ctx.Value(&contextKey).(*context)
+	return c
+}
+
+func withContext(parent netcontext.Context, c *context) netcontext.Context {
+	ctx := netcontext.WithValue(parent, &contextKey, c)
+	if ns := c.req.Header.Get(curNamespaceHeader); ns != "" {
+		ctx = withNamespace(ctx, ns)
+	}
+	return ctx
+}
+
+func toContext(c *context) netcontext.Context {
+	return withContext(netcontext.Background(), c)
+}
+
+func IncomingHeaders(ctx netcontext.Context) http.Header {
+	if c := fromContext(ctx); c != nil {
+		return c.req.Header
+	}
+	return nil
+}
+
+func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context {
+	ctxs.Lock()
+	c := ctxs.m[req]
+	d := ctxs.dec[req]
+	ctxs.Unlock()
+
+	if d != nil {
+		parent = d(parent)
+	}
+
+	if c == nil {
+		// Someone passed in an http.Request that is not in-flight.
+		// We panic here rather than panicking at a later point
+		// so that stack traces will be more sensible.
+		log.Panic("appengine: NewContext passed an unknown http.Request")
+	}
+	return withContext(parent, c)
+}
+
+func BackgroundContext() netcontext.Context {
+	ctxs.Lock()
+	defer ctxs.Unlock()
+
+	if ctxs.bg != nil {
+		return toContext(ctxs.bg)
+	}
+
+	// Compute background security ticket.
+	appID := partitionlessAppID()
+	escAppID := strings.Replace(strings.Replace(appID, ":", "_", -1), ".", "_", -1)
+	majVersion := VersionID(nil)
+	if i := strings.Index(majVersion, "."); i > 0 {
+		majVersion = majVersion[:i]
+	}
+	ticket := fmt.Sprintf("%s/%s.%s.%s", escAppID, ModuleName(nil), majVersion, InstanceID())
+
+	ctxs.bg = &context{
+		req: &http.Request{
+			Header: http.Header{
+				ticketHeader: []string{ticket},
+			},
+		},
+		apiURL: apiURL(),
+		logger: globalLogger(),
+	}
+
+	return toContext(ctxs.bg)
+}
+
+// RegisterTestRequest registers the HTTP request req for testing, such that
+// any API calls are sent to the provided URL. It returns a closure to delete
+// the registration.
+// It should only be used by aetest package.
+func RegisterTestRequest(req *http.Request, apiURL *url.URL, decorate func(netcontext.Context) netcontext.Context) func() {
+	c := &context{
+		req:    req,
+		apiURL: apiURL,
+		logger: globalLogger(),
+	}
+	ctxs.Lock()
+	defer ctxs.Unlock()
+	if _, ok := ctxs.m[req]; ok {
+		log.Panic("req already associated with context")
+	}
+	if _, ok := ctxs.dec[req]; ok {
+		log.Panic("req already associated with context")
+	}
+	if ctxs.dec == nil {
+		ctxs.dec = make(map[*http.Request]func(netcontext.Context) netcontext.Context)
+	}
+	ctxs.m[req] = c
+	ctxs.dec[req] = decorate
+
+	return func() {
+		ctxs.Lock()
+		delete(ctxs.m, req)
+		delete(ctxs.dec, req)
+		ctxs.Unlock()
+	}
+}
+
+var errTimeout = &CallError{
+	Detail:  "Deadline exceeded",
+	Code:    int32(remotepb.RpcError_CANCELLED),
+	Timeout: true,
+}
+
+func (c *context) Header() http.Header { return c.outHeader }
+
+// Copied from $GOROOT/src/pkg/net/http/transfer.go. Some response status
+// codes do not permit a response body (nor response entity headers such as
+// Content-Length, Content-Type, etc).
+func bodyAllowedForStatus(status int) bool {
+	switch {
+	case status >= 100 && status <= 199:
+		return false
+	case status == 204:
+		return false
+	case status == 304:
+		return false
+	}
+	return true
+}
+
+func (c *context) Write(b []byte) (int, error) {
+	if c.outCode == 0 {
+		c.WriteHeader(http.StatusOK)
+	}
+	if len(b) > 0 && !bodyAllowedForStatus(c.outCode) {
+		return 0, http.ErrBodyNotAllowed
+	}
+	c.outBody = append(c.outBody, b...)
+	return len(b), nil
+}
+
+func (c *context) WriteHeader(code int) {
+	if c.outCode != 0 {
+		logf(c, 3, "WriteHeader called multiple times on request.") // error level
+		return
+	}
+	c.outCode = code
+}
+
+func (c *context) post(body []byte, timeout time.Duration) (b []byte, err error) {
+	hreq := &http.Request{
+		Method: "POST",
+		URL:    c.apiURL,
+		Header: http.Header{
+			apiEndpointHeader: apiEndpointHeaderValue,
+			apiMethodHeader:   apiMethodHeaderValue,
+			apiContentType:    apiContentTypeValue,
+			apiDeadlineHeader: []string{strconv.FormatFloat(timeout.Seconds(), 'f', -1, 64)},
+		},
+		Body:          ioutil.NopCloser(bytes.NewReader(body)),
+		ContentLength: int64(len(body)),
+		Host:          c.apiURL.Host,
+	}
+	if info := c.req.Header.Get(dapperHeader); info != "" {
+		hreq.Header.Set(dapperHeader, info)
+	}
+	if info := c.req.Header.Get(traceHeader); info != "" {
+		hreq.Header.Set(traceHeader, info)
+	}
+
+	tr := apiHTTPClient.Transport.(*http.Transport)
+
+	var timedOut int32 // atomic; set to 1 if timed out
+	t := time.AfterFunc(timeout, func() {
+		atomic.StoreInt32(&timedOut, 1)
+		tr.CancelRequest(hreq)
+	})
+	defer t.Stop()
+	defer func() {
+		// Check if timeout was exceeded.
+		if atomic.LoadInt32(&timedOut) != 0 {
+			err = errTimeout
+		}
+	}()
+
+	hresp, err := apiHTTPClient.Do(hreq)
+	if err != nil {
+		return nil, &CallError{
+			Detail: fmt.Sprintf("service bridge HTTP failed: %v", err),
+			Code:   int32(remotepb.RpcError_UNKNOWN),
+		}
+	}
+	defer hresp.Body.Close()
+	hrespBody, err := ioutil.ReadAll(hresp.Body)
+	if hresp.StatusCode != 200 {
+		return nil, &CallError{
+			Detail: fmt.Sprintf("service bridge returned HTTP %d (%q)", hresp.StatusCode, hrespBody),
+			Code:   int32(remotepb.RpcError_UNKNOWN),
+		}
+	}
+	if err != nil {
+		return nil, &CallError{
+			Detail: fmt.Sprintf("service bridge response bad: %v", err),
+			Code:   int32(remotepb.RpcError_UNKNOWN),
+		}
+	}
+	return hrespBody, nil
+}
+
+func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error {
+	if ns := NamespaceFromContext(ctx); ns != "" {
+		if fn, ok := NamespaceMods[service]; ok {
+			fn(in, ns)
+		}
+	}
+
+	if f, ctx, ok := callOverrideFromContext(ctx); ok {
+		return f(ctx, service, method, in, out)
+	}
+
+	// Handle already-done contexts quickly.
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	default:
+	}
+
+	c := fromContext(ctx)
+	if c == nil {
+		// Give a good error message rather than a panic lower down.
+		return errors.New("not an App Engine context")
+	}
+
+	// Apply transaction modifications if we're in a transaction.
+	if t := transactionFromContext(ctx); t != nil {
+		if t.finished {
+			return errors.New("transaction context has expired")
+		}
+		applyTransaction(in, &t.transaction)
+	}
+
+	// Default RPC timeout is 60s.
+	timeout := 60 * time.Second
+	if deadline, ok := ctx.Deadline(); ok {
+		timeout = deadline.Sub(time.Now())
+	}
+
+	data, err := proto.Marshal(in)
+	if err != nil {
+		return err
+	}
+
+	ticket := c.req.Header.Get(ticketHeader)
+	req := &remotepb.Request{
+		ServiceName: &service,
+		Method:      &method,
+		Request:     data,
+		RequestId:   &ticket,
+	}
+	hreqBody, err := proto.Marshal(req)
+	if err != nil {
+		return err
+	}
+
+	hrespBody, err := c.post(hreqBody, timeout)
+	if err != nil {
+		return err
+	}
+
+	res := &remotepb.Response{}
+	if err := proto.Unmarshal(hrespBody, res); err != nil {
+		return err
+	}
+	if res.RpcError != nil {
+		ce := &CallError{
+			Detail: res.RpcError.GetDetail(),
+			Code:   *res.RpcError.Code,
+		}
+		switch remotepb.RpcError_ErrorCode(ce.Code) {
+		case remotepb.RpcError_CANCELLED, remotepb.RpcError_DEADLINE_EXCEEDED:
+			ce.Timeout = true
+		}
+		return ce
+	}
+	if res.ApplicationError != nil {
+		return &APIError{
+			Service: *req.ServiceName,
+			Detail:  res.ApplicationError.GetDetail(),
+			Code:    *res.ApplicationError.Code,
+		}
+	}
+	if res.Exception != nil || res.JavaException != nil {
+		// This shouldn't happen, but let's be defensive.
+		return &CallError{
+			Detail: "service bridge returned exception",
+			Code:   int32(remotepb.RpcError_UNKNOWN),
+		}
+	}
+	return proto.Unmarshal(res.Response, out)
+}
+
+func (c *context) Request() *http.Request {
+	return c.req
+}
+
+func ContextForTesting(req *http.Request) netcontext.Context {
+	return toContext(&context{
+		req:    req,
+		logger: testLogger,
+	})
+}
diff --git a/vendor/google.golang.org/appengine/internal/api_classic.go b/vendor/google.golang.org/appengine/internal/api_classic.go
new file mode 100644
index 0000000..597f66e
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/api_classic.go
@@ -0,0 +1,159 @@
+// Copyright 2015 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build appengine
+
+package internal
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	"appengine"
+	"appengine_internal"
+	basepb "appengine_internal/base"
+
+	"github.com/golang/protobuf/proto"
+	netcontext "golang.org/x/net/context"
+)
+
+var contextKey = "holds an appengine.Context"
+
+func fromContext(ctx netcontext.Context) appengine.Context {
+	c, _ := ctx.Value(&contextKey).(appengine.Context)
+	return c
+}
+
+// This is only for classic App Engine adapters.
+func ClassicContextFromContext(ctx netcontext.Context) appengine.Context {
+	return fromContext(ctx)
+}
+
+func withContext(parent netcontext.Context, c appengine.Context) netcontext.Context {
+	ctx := netcontext.WithValue(parent, &contextKey, c)
+
+	s := &basepb.StringProto{}
+	c.Call("__go__", "GetNamespace", &basepb.VoidProto{}, s, nil)
+	if ns := s.GetValue(); ns != "" {
+		ctx = NamespacedContext(ctx, ns)
+	}
+
+	return ctx
+}
+
+func IncomingHeaders(ctx netcontext.Context) http.Header {
+	if c := fromContext(ctx); c != nil {
+		if req, ok := c.Request().(*http.Request); ok {
+			return req.Header
+		}
+	}
+	return nil
+}
+
+func WithContext(parent netcontext.Context, req *http.Request) netcontext.Context {
+	c := appengine.NewContext(req)
+	return withContext(parent, c)
+}
+
+type testingContext struct {
+	appengine.Context
+
+	req *http.Request
+}
+
+func (t *testingContext) FullyQualifiedAppID() string { return "dev~testcontext" }
+func (t *testingContext) Call(service, method string, _, _ appengine_internal.ProtoMessage, _ *appengine_internal.CallOptions) error {
+	if service == "__go__" && method == "GetNamespace" {
+		return nil
+	}
+	return fmt.Errorf("testingContext: unsupported Call")
+}
+func (t *testingContext) Request() interface{} { return t.req }
+
+func ContextForTesting(req *http.Request) netcontext.Context {
+	return withContext(netcontext.Background(), &testingContext{req: req})
+}
+
+func Call(ctx netcontext.Context, service, method string, in, out proto.Message) error {
+	if ns := NamespaceFromContext(ctx); ns != "" {
+		if fn, ok := NamespaceMods[service]; ok {
+			fn(in, ns)
+		}
+	}
+
+	if f, ctx, ok := callOverrideFromContext(ctx); ok {
+		return f(ctx, service, method, in, out)
+	}
+
+	// Handle already-done contexts quickly.
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	default:
+	}
+
+	c := fromContext(ctx)
+	if c == nil {
+		// Give a good error message rather than a panic lower down.
+		return errors.New("not an App Engine context")
+	}
+
+	// Apply transaction modifications if we're in a transaction.
+	if t := transactionFromContext(ctx); t != nil {
+		if t.finished {
+			return errors.New("transaction context has expired")
+		}
+		applyTransaction(in, &t.transaction)
+	}
+
+	var opts *appengine_internal.CallOptions
+	if d, ok := ctx.Deadline(); ok {
+		opts = &appengine_internal.CallOptions{
+			Timeout: d.Sub(time.Now()),
+		}
+	}
+
+	err := c.Call(service, method, in, out, opts)
+	switch v := err.(type) {
+	case *appengine_internal.APIError:
+		return &APIError{
+			Service: v.Service,
+			Detail:  v.Detail,
+			Code:    v.Code,
+		}
+	case *appengine_internal.CallError:
+		return &CallError{
+			Detail:  v.Detail,
+			Code:    v.Code,
+			Timeout: v.Timeout,
+		}
+	}
+	return err
+}
+
+func handleHTTP(w http.ResponseWriter, r *http.Request) {
+	panic("handleHTTP called; this should be impossible")
+}
+
+func logf(c appengine.Context, level int64, format string, args ...interface{}) {
+	var fn func(format string, args ...interface{})
+	switch level {
+	case 0:
+		fn = c.Debugf
+	case 1:
+		fn = c.Infof
+	case 2:
+		fn = c.Warningf
+	case 3:
+		fn = c.Errorf
+	case 4:
+		fn = c.Criticalf
+	default:
+		// This shouldn't happen.
+		fn = c.Criticalf
+	}
+	fn(format, args...)
+}
diff --git a/vendor/google.golang.org/appengine/internal/api_common.go b/vendor/google.golang.org/appengine/internal/api_common.go
new file mode 100644
index 0000000..2db33a7
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/api_common.go
@@ -0,0 +1,86 @@
+// Copyright 2015 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package internal
+
+import (
+	"github.com/golang/protobuf/proto"
+	netcontext "golang.org/x/net/context"
+)
+
+type CallOverrideFunc func(ctx netcontext.Context, service, method string, in, out proto.Message) error
+
+var callOverrideKey = "holds []CallOverrideFunc"
+
+func WithCallOverride(ctx netcontext.Context, f CallOverrideFunc) netcontext.Context {
+	// We avoid appending to any existing call override
+	// so we don't risk overwriting a popped stack below.
+	var cofs []CallOverrideFunc
+	if uf, ok := ctx.Value(&callOverrideKey).([]CallOverrideFunc); ok {
+		cofs = append(cofs, uf...)
+	}
+	cofs = append(cofs, f)
+	return netcontext.WithValue(ctx, &callOverrideKey, cofs)
+}
+
+func callOverrideFromContext(ctx netcontext.Context) (CallOverrideFunc, netcontext.Context, bool) {
+	cofs, _ := ctx.Value(&callOverrideKey).([]CallOverrideFunc)
+	if len(cofs) == 0 {
+		return nil, nil, false
+	}
+	// We found a list of overrides; grab the last, and reconstitute a
+	// context that will hide it.
+	f := cofs[len(cofs)-1]
+	ctx = netcontext.WithValue(ctx, &callOverrideKey, cofs[:len(cofs)-1])
+	return f, ctx, true
+}
+
+type logOverrideFunc func(level int64, format string, args ...interface{})
+
+var logOverrideKey = "holds a logOverrideFunc"
+
+func WithLogOverride(ctx netcontext.Context, f logOverrideFunc) netcontext.Context {
+	return netcontext.WithValue(ctx, &logOverrideKey, f)
+}
+
+var appIDOverrideKey = "holds a string, being the full app ID"
+
+func WithAppIDOverride(ctx netcontext.Context, appID string) netcontext.Context {
+	return netcontext.WithValue(ctx, &appIDOverrideKey, appID)
+}
+
+var namespaceKey = "holds the namespace string"
+
+func withNamespace(ctx netcontext.Context, ns string) netcontext.Context {
+	return netcontext.WithValue(ctx, &namespaceKey, ns)
+}
+
+func NamespaceFromContext(ctx netcontext.Context) string {
+	// If there's no namespace, return the empty string.
+	ns, _ := ctx.Value(&namespaceKey).(string)
+	return ns
+}
+
+// FullyQualifiedAppID returns the fully-qualified application ID.
+// This may contain a partition prefix (e.g. "s~" for High Replication apps),
+// or a domain prefix (e.g. "example.com:").
+func FullyQualifiedAppID(ctx netcontext.Context) string {
+	if id, ok := ctx.Value(&appIDOverrideKey).(string); ok {
+		return id
+	}
+	return fullyQualifiedAppID(ctx)
+}
+
+func Logf(ctx netcontext.Context, level int64, format string, args ...interface{}) {
+	if f, ok := ctx.Value(&logOverrideKey).(logOverrideFunc); ok {
+		f(level, format, args...)
+		return
+	}
+	logf(fromContext(ctx), level, format, args...)
+}
+
+// NamespacedContext wraps a Context to support namespaces.
+func NamespacedContext(ctx netcontext.Context, namespace string) netcontext.Context {
+	return withNamespace(ctx, namespace)
+}
diff --git a/vendor/google.golang.org/appengine/internal/app_id.go b/vendor/google.golang.org/appengine/internal/app_id.go
new file mode 100644
index 0000000..11df8c0
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/app_id.go
@@ -0,0 +1,28 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package internal
+
+import (
+	"strings"
+)
+
+func parseFullAppID(appid string) (partition, domain, displayID string) {
+	if i := strings.Index(appid, "~"); i != -1 {
+		partition, appid = appid[:i], appid[i+1:]
+	}
+	if i := strings.Index(appid, ":"); i != -1 {
+		domain, appid = appid[:i], appid[i+1:]
+	}
+	return partition, domain, appid
+}
+
+// appID returns "appid" or "domain.com:appid".
+func appID(fullAppID string) string {
+	_, dom, dis := parseFullAppID(fullAppID)
+	if dom != "" {
+		return dom + ":" + dis
+	}
+	return dis
+}
diff --git a/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go
new file mode 100644
index 0000000..87d9701
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.pb.go
@@ -0,0 +1,296 @@
+// Code generated by protoc-gen-go.
+// source: google.golang.org/appengine/internal/app_identity/app_identity_service.proto
+// DO NOT EDIT!
+
+/*
+Package app_identity is a generated protocol buffer package.
+
+It is generated from these files:
+	google.golang.org/appengine/internal/app_identity/app_identity_service.proto
+
+It has these top-level messages:
+	AppIdentityServiceError
+	SignForAppRequest
+	SignForAppResponse
+	GetPublicCertificateForAppRequest
+	PublicCertificate
+	GetPublicCertificateForAppResponse
+	GetServiceAccountNameRequest
+	GetServiceAccountNameResponse
+	GetAccessTokenRequest
+	GetAccessTokenResponse
+	GetDefaultGcsBucketNameRequest
+	GetDefaultGcsBucketNameResponse
+*/
+package app_identity
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type AppIdentityServiceError_ErrorCode int32
+
+const (
+	AppIdentityServiceError_SUCCESS           AppIdentityServiceError_ErrorCode = 0
+	AppIdentityServiceError_UNKNOWN_SCOPE     AppIdentityServiceError_ErrorCode = 9
+	AppIdentityServiceError_BLOB_TOO_LARGE    AppIdentityServiceError_ErrorCode = 1000
+	AppIdentityServiceError_DEADLINE_EXCEEDED AppIdentityServiceError_ErrorCode = 1001
+	AppIdentityServiceError_NOT_A_VALID_APP   AppIdentityServiceError_ErrorCode = 1002
+	AppIdentityServiceError_UNKNOWN_ERROR     AppIdentityServiceError_ErrorCode = 1003
+	AppIdentityServiceError_NOT_ALLOWED       AppIdentityServiceError_ErrorCode = 1005
+	AppIdentityServiceError_NOT_IMPLEMENTED   AppIdentityServiceError_ErrorCode = 1006
+)
+
+var AppIdentityServiceError_ErrorCode_name = map[int32]string{
+	0:    "SUCCESS",
+	9:    "UNKNOWN_SCOPE",
+	1000: "BLOB_TOO_LARGE",
+	1001: "DEADLINE_EXCEEDED",
+	1002: "NOT_A_VALID_APP",
+	1003: "UNKNOWN_ERROR",
+	1005: "NOT_ALLOWED",
+	1006: "NOT_IMPLEMENTED",
+}
+var AppIdentityServiceError_ErrorCode_value = map[string]int32{
+	"SUCCESS":           0,
+	"UNKNOWN_SCOPE":     9,
+	"BLOB_TOO_LARGE":    1000,
+	"DEADLINE_EXCEEDED": 1001,
+	"NOT_A_VALID_APP":   1002,
+	"UNKNOWN_ERROR":     1003,
+	"NOT_ALLOWED":       1005,
+	"NOT_IMPLEMENTED":   1006,
+}
+
+func (x AppIdentityServiceError_ErrorCode) Enum() *AppIdentityServiceError_ErrorCode {
+	p := new(AppIdentityServiceError_ErrorCode)
+	*p = x
+	return p
+}
+func (x AppIdentityServiceError_ErrorCode) String() string {
+	return proto.EnumName(AppIdentityServiceError_ErrorCode_name, int32(x))
+}
+func (x *AppIdentityServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(AppIdentityServiceError_ErrorCode_value, data, "AppIdentityServiceError_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = AppIdentityServiceError_ErrorCode(value)
+	return nil
+}
+
+type AppIdentityServiceError struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *AppIdentityServiceError) Reset()         { *m = AppIdentityServiceError{} }
+func (m *AppIdentityServiceError) String() string { return proto.CompactTextString(m) }
+func (*AppIdentityServiceError) ProtoMessage()    {}
+
+type SignForAppRequest struct {
+	BytesToSign      []byte `protobuf:"bytes,1,opt,name=bytes_to_sign" json:"bytes_to_sign,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *SignForAppRequest) Reset()         { *m = SignForAppRequest{} }
+func (m *SignForAppRequest) String() string { return proto.CompactTextString(m) }
+func (*SignForAppRequest) ProtoMessage()    {}
+
+func (m *SignForAppRequest) GetBytesToSign() []byte {
+	if m != nil {
+		return m.BytesToSign
+	}
+	return nil
+}
+
+type SignForAppResponse struct {
+	KeyName          *string `protobuf:"bytes,1,opt,name=key_name" json:"key_name,omitempty"`
+	SignatureBytes   []byte  `protobuf:"bytes,2,opt,name=signature_bytes" json:"signature_bytes,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *SignForAppResponse) Reset()         { *m = SignForAppResponse{} }
+func (m *SignForAppResponse) String() string { return proto.CompactTextString(m) }
+func (*SignForAppResponse) ProtoMessage()    {}
+
+func (m *SignForAppResponse) GetKeyName() string {
+	if m != nil && m.KeyName != nil {
+		return *m.KeyName
+	}
+	return ""
+}
+
+func (m *SignForAppResponse) GetSignatureBytes() []byte {
+	if m != nil {
+		return m.SignatureBytes
+	}
+	return nil
+}
+
+type GetPublicCertificateForAppRequest struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *GetPublicCertificateForAppRequest) Reset()         { *m = GetPublicCertificateForAppRequest{} }
+func (m *GetPublicCertificateForAppRequest) String() string { return proto.CompactTextString(m) }
+func (*GetPublicCertificateForAppRequest) ProtoMessage()    {}
+
+type PublicCertificate struct {
+	KeyName            *string `protobuf:"bytes,1,opt,name=key_name" json:"key_name,omitempty"`
+	X509CertificatePem *string `protobuf:"bytes,2,opt,name=x509_certificate_pem" json:"x509_certificate_pem,omitempty"`
+	XXX_unrecognized   []byte  `json:"-"`
+}
+
+func (m *PublicCertificate) Reset()         { *m = PublicCertificate{} }
+func (m *PublicCertificate) String() string { return proto.CompactTextString(m) }
+func (*PublicCertificate) ProtoMessage()    {}
+
+func (m *PublicCertificate) GetKeyName() string {
+	if m != nil && m.KeyName != nil {
+		return *m.KeyName
+	}
+	return ""
+}
+
+func (m *PublicCertificate) GetX509CertificatePem() string {
+	if m != nil && m.X509CertificatePem != nil {
+		return *m.X509CertificatePem
+	}
+	return ""
+}
+
+type GetPublicCertificateForAppResponse struct {
+	PublicCertificateList      []*PublicCertificate `protobuf:"bytes,1,rep,name=public_certificate_list" json:"public_certificate_list,omitempty"`
+	MaxClientCacheTimeInSecond *int64               `protobuf:"varint,2,opt,name=max_client_cache_time_in_second" json:"max_client_cache_time_in_second,omitempty"`
+	XXX_unrecognized           []byte               `json:"-"`
+}
+
+func (m *GetPublicCertificateForAppResponse) Reset()         { *m = GetPublicCertificateForAppResponse{} }
+func (m *GetPublicCertificateForAppResponse) String() string { return proto.CompactTextString(m) }
+func (*GetPublicCertificateForAppResponse) ProtoMessage()    {}
+
+func (m *GetPublicCertificateForAppResponse) GetPublicCertificateList() []*PublicCertificate {
+	if m != nil {
+		return m.PublicCertificateList
+	}
+	return nil
+}
+
+func (m *GetPublicCertificateForAppResponse) GetMaxClientCacheTimeInSecond() int64 {
+	if m != nil && m.MaxClientCacheTimeInSecond != nil {
+		return *m.MaxClientCacheTimeInSecond
+	}
+	return 0
+}
+
+type GetServiceAccountNameRequest struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *GetServiceAccountNameRequest) Reset()         { *m = GetServiceAccountNameRequest{} }
+func (m *GetServiceAccountNameRequest) String() string { return proto.CompactTextString(m) }
+func (*GetServiceAccountNameRequest) ProtoMessage()    {}
+
+type GetServiceAccountNameResponse struct {
+	ServiceAccountName *string `protobuf:"bytes,1,opt,name=service_account_name" json:"service_account_name,omitempty"`
+	XXX_unrecognized   []byte  `json:"-"`
+}
+
+func (m *GetServiceAccountNameResponse) Reset()         { *m = GetServiceAccountNameResponse{} }
+func (m *GetServiceAccountNameResponse) String() string { return proto.CompactTextString(m) }
+func (*GetServiceAccountNameResponse) ProtoMessage()    {}
+
+func (m *GetServiceAccountNameResponse) GetServiceAccountName() string {
+	if m != nil && m.ServiceAccountName != nil {
+		return *m.ServiceAccountName
+	}
+	return ""
+}
+
+type GetAccessTokenRequest struct {
+	Scope              []string `protobuf:"bytes,1,rep,name=scope" json:"scope,omitempty"`
+	ServiceAccountId   *int64   `protobuf:"varint,2,opt,name=service_account_id" json:"service_account_id,omitempty"`
+	ServiceAccountName *string  `protobuf:"bytes,3,opt,name=service_account_name" json:"service_account_name,omitempty"`
+	XXX_unrecognized   []byte   `json:"-"`
+}
+
+func (m *GetAccessTokenRequest) Reset()         { *m = GetAccessTokenRequest{} }
+func (m *GetAccessTokenRequest) String() string { return proto.CompactTextString(m) }
+func (*GetAccessTokenRequest) ProtoMessage()    {}
+
+func (m *GetAccessTokenRequest) GetScope() []string {
+	if m != nil {
+		return m.Scope
+	}
+	return nil
+}
+
+func (m *GetAccessTokenRequest) GetServiceAccountId() int64 {
+	if m != nil && m.ServiceAccountId != nil {
+		return *m.ServiceAccountId
+	}
+	return 0
+}
+
+func (m *GetAccessTokenRequest) GetServiceAccountName() string {
+	if m != nil && m.ServiceAccountName != nil {
+		return *m.ServiceAccountName
+	}
+	return ""
+}
+
+type GetAccessTokenResponse struct {
+	AccessToken      *string `protobuf:"bytes,1,opt,name=access_token" json:"access_token,omitempty"`
+	ExpirationTime   *int64  `protobuf:"varint,2,opt,name=expiration_time" json:"expiration_time,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetAccessTokenResponse) Reset()         { *m = GetAccessTokenResponse{} }
+func (m *GetAccessTokenResponse) String() string { return proto.CompactTextString(m) }
+func (*GetAccessTokenResponse) ProtoMessage()    {}
+
+func (m *GetAccessTokenResponse) GetAccessToken() string {
+	if m != nil && m.AccessToken != nil {
+		return *m.AccessToken
+	}
+	return ""
+}
+
+func (m *GetAccessTokenResponse) GetExpirationTime() int64 {
+	if m != nil && m.ExpirationTime != nil {
+		return *m.ExpirationTime
+	}
+	return 0
+}
+
+type GetDefaultGcsBucketNameRequest struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *GetDefaultGcsBucketNameRequest) Reset()         { *m = GetDefaultGcsBucketNameRequest{} }
+func (m *GetDefaultGcsBucketNameRequest) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultGcsBucketNameRequest) ProtoMessage()    {}
+
+type GetDefaultGcsBucketNameResponse struct {
+	DefaultGcsBucketName *string `protobuf:"bytes,1,opt,name=default_gcs_bucket_name" json:"default_gcs_bucket_name,omitempty"`
+	XXX_unrecognized     []byte  `json:"-"`
+}
+
+func (m *GetDefaultGcsBucketNameResponse) Reset()         { *m = GetDefaultGcsBucketNameResponse{} }
+func (m *GetDefaultGcsBucketNameResponse) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultGcsBucketNameResponse) ProtoMessage()    {}
+
+func (m *GetDefaultGcsBucketNameResponse) GetDefaultGcsBucketName() string {
+	if m != nil && m.DefaultGcsBucketName != nil {
+		return *m.DefaultGcsBucketName
+	}
+	return ""
+}
+
+func init() {
+}
diff --git a/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto
new file mode 100644
index 0000000..19610ca
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/app_identity/app_identity_service.proto
@@ -0,0 +1,64 @@
+syntax = "proto2";
+option go_package = "app_identity";
+
+package appengine;
+
+message AppIdentityServiceError {
+  enum ErrorCode {
+    SUCCESS = 0;
+    UNKNOWN_SCOPE = 9;
+    BLOB_TOO_LARGE = 1000;
+    DEADLINE_EXCEEDED = 1001;
+    NOT_A_VALID_APP = 1002;
+    UNKNOWN_ERROR = 1003;
+    NOT_ALLOWED = 1005;
+    NOT_IMPLEMENTED = 1006;
+  }
+}
+
+message SignForAppRequest {
+  optional bytes bytes_to_sign = 1;
+}
+
+message SignForAppResponse {
+  optional string key_name = 1;
+  optional bytes signature_bytes = 2;
+}
+
+message GetPublicCertificateForAppRequest {
+}
+
+message PublicCertificate {
+  optional string key_name = 1;
+  optional string x509_certificate_pem = 2;
+}
+
+message GetPublicCertificateForAppResponse {
+  repeated PublicCertificate public_certificate_list = 1;
+  optional int64 max_client_cache_time_in_second = 2;
+}
+
+message GetServiceAccountNameRequest {
+}
+
+message GetServiceAccountNameResponse {
+  optional string service_account_name = 1;
+}
+
+message GetAccessTokenRequest {
+  repeated string scope = 1;
+  optional int64 service_account_id = 2;
+  optional string service_account_name = 3;
+}
+
+message GetAccessTokenResponse {
+  optional string access_token = 1;
+  optional int64 expiration_time = 2;
+}
+
+message GetDefaultGcsBucketNameRequest {
+}
+
+message GetDefaultGcsBucketNameResponse {
+  optional string default_gcs_bucket_name = 1;
+}
diff --git a/vendor/google.golang.org/appengine/internal/base/api_base.pb.go b/vendor/google.golang.org/appengine/internal/base/api_base.pb.go
new file mode 100644
index 0000000..36a1956
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/base/api_base.pb.go
@@ -0,0 +1,133 @@
+// Code generated by protoc-gen-go.
+// source: google.golang.org/appengine/internal/base/api_base.proto
+// DO NOT EDIT!
+
+/*
+Package base is a generated protocol buffer package.
+
+It is generated from these files:
+	google.golang.org/appengine/internal/base/api_base.proto
+
+It has these top-level messages:
+	StringProto
+	Integer32Proto
+	Integer64Proto
+	BoolProto
+	DoubleProto
+	BytesProto
+	VoidProto
+*/
+package base
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type StringProto struct {
+	Value            *string `protobuf:"bytes,1,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *StringProto) Reset()         { *m = StringProto{} }
+func (m *StringProto) String() string { return proto.CompactTextString(m) }
+func (*StringProto) ProtoMessage()    {}
+
+func (m *StringProto) GetValue() string {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return ""
+}
+
+type Integer32Proto struct {
+	Value            *int32 `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *Integer32Proto) Reset()         { *m = Integer32Proto{} }
+func (m *Integer32Proto) String() string { return proto.CompactTextString(m) }
+func (*Integer32Proto) ProtoMessage()    {}
+
+func (m *Integer32Proto) GetValue() int32 {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return 0
+}
+
+type Integer64Proto struct {
+	Value            *int64 `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *Integer64Proto) Reset()         { *m = Integer64Proto{} }
+func (m *Integer64Proto) String() string { return proto.CompactTextString(m) }
+func (*Integer64Proto) ProtoMessage()    {}
+
+func (m *Integer64Proto) GetValue() int64 {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return 0
+}
+
+type BoolProto struct {
+	Value            *bool  `protobuf:"varint,1,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *BoolProto) Reset()         { *m = BoolProto{} }
+func (m *BoolProto) String() string { return proto.CompactTextString(m) }
+func (*BoolProto) ProtoMessage()    {}
+
+func (m *BoolProto) GetValue() bool {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return false
+}
+
+type DoubleProto struct {
+	Value            *float64 `protobuf:"fixed64,1,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte   `json:"-"`
+}
+
+func (m *DoubleProto) Reset()         { *m = DoubleProto{} }
+func (m *DoubleProto) String() string { return proto.CompactTextString(m) }
+func (*DoubleProto) ProtoMessage()    {}
+
+func (m *DoubleProto) GetValue() float64 {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return 0
+}
+
+type BytesProto struct {
+	Value            []byte `protobuf:"bytes,1,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *BytesProto) Reset()         { *m = BytesProto{} }
+func (m *BytesProto) String() string { return proto.CompactTextString(m) }
+func (*BytesProto) ProtoMessage()    {}
+
+func (m *BytesProto) GetValue() []byte {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+type VoidProto struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *VoidProto) Reset()         { *m = VoidProto{} }
+func (m *VoidProto) String() string { return proto.CompactTextString(m) }
+func (*VoidProto) ProtoMessage()    {}
diff --git a/vendor/google.golang.org/appengine/internal/base/api_base.proto b/vendor/google.golang.org/appengine/internal/base/api_base.proto
new file mode 100644
index 0000000..56cd7a3
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/base/api_base.proto
@@ -0,0 +1,33 @@
+// Built-in base types for API calls. Primarily useful as return types.
+
+syntax = "proto2";
+option go_package = "base";
+
+package appengine.base;
+
+message StringProto {
+  required string value = 1;
+}
+
+message Integer32Proto {
+  required int32 value = 1;
+}
+
+message Integer64Proto {
+  required int64 value = 1;
+}
+
+message BoolProto {
+  required bool value = 1;
+}
+
+message DoubleProto {
+  required double value = 1;
+}
+
+message BytesProto {
+  required bytes value = 1 [ctype=CORD];
+}
+
+message VoidProto {
+}
diff --git a/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go
new file mode 100644
index 0000000..8613cb7
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.pb.go
@@ -0,0 +1,2778 @@
+// Code generated by protoc-gen-go.
+// source: google.golang.org/appengine/internal/datastore/datastore_v3.proto
+// DO NOT EDIT!
+
+/*
+Package datastore is a generated protocol buffer package.
+
+It is generated from these files:
+	google.golang.org/appengine/internal/datastore/datastore_v3.proto
+
+It has these top-level messages:
+	Action
+	PropertyValue
+	Property
+	Path
+	Reference
+	User
+	EntityProto
+	CompositeProperty
+	Index
+	CompositeIndex
+	IndexPostfix
+	IndexPosition
+	Snapshot
+	InternalHeader
+	Transaction
+	Query
+	CompiledQuery
+	CompiledCursor
+	Cursor
+	Error
+	Cost
+	GetRequest
+	GetResponse
+	PutRequest
+	PutResponse
+	TouchRequest
+	TouchResponse
+	DeleteRequest
+	DeleteResponse
+	NextRequest
+	QueryResult
+	AllocateIdsRequest
+	AllocateIdsResponse
+	CompositeIndices
+	AddActionsRequest
+	AddActionsResponse
+	BeginTransactionRequest
+	CommitResponse
+*/
+package datastore
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type Property_Meaning int32
+
+const (
+	Property_NO_MEANING       Property_Meaning = 0
+	Property_BLOB             Property_Meaning = 14
+	Property_TEXT             Property_Meaning = 15
+	Property_BYTESTRING       Property_Meaning = 16
+	Property_ATOM_CATEGORY    Property_Meaning = 1
+	Property_ATOM_LINK        Property_Meaning = 2
+	Property_ATOM_TITLE       Property_Meaning = 3
+	Property_ATOM_CONTENT     Property_Meaning = 4
+	Property_ATOM_SUMMARY     Property_Meaning = 5
+	Property_ATOM_AUTHOR      Property_Meaning = 6
+	Property_GD_WHEN          Property_Meaning = 7
+	Property_GD_EMAIL         Property_Meaning = 8
+	Property_GEORSS_POINT     Property_Meaning = 9
+	Property_GD_IM            Property_Meaning = 10
+	Property_GD_PHONENUMBER   Property_Meaning = 11
+	Property_GD_POSTALADDRESS Property_Meaning = 12
+	Property_GD_RATING        Property_Meaning = 13
+	Property_BLOBKEY          Property_Meaning = 17
+	Property_ENTITY_PROTO     Property_Meaning = 19
+	Property_INDEX_VALUE      Property_Meaning = 18
+)
+
+var Property_Meaning_name = map[int32]string{
+	0:  "NO_MEANING",
+	14: "BLOB",
+	15: "TEXT",
+	16: "BYTESTRING",
+	1:  "ATOM_CATEGORY",
+	2:  "ATOM_LINK",
+	3:  "ATOM_TITLE",
+	4:  "ATOM_CONTENT",
+	5:  "ATOM_SUMMARY",
+	6:  "ATOM_AUTHOR",
+	7:  "GD_WHEN",
+	8:  "GD_EMAIL",
+	9:  "GEORSS_POINT",
+	10: "GD_IM",
+	11: "GD_PHONENUMBER",
+	12: "GD_POSTALADDRESS",
+	13: "GD_RATING",
+	17: "BLOBKEY",
+	19: "ENTITY_PROTO",
+	18: "INDEX_VALUE",
+}
+var Property_Meaning_value = map[string]int32{
+	"NO_MEANING":       0,
+	"BLOB":             14,
+	"TEXT":             15,
+	"BYTESTRING":       16,
+	"ATOM_CATEGORY":    1,
+	"ATOM_LINK":        2,
+	"ATOM_TITLE":       3,
+	"ATOM_CONTENT":     4,
+	"ATOM_SUMMARY":     5,
+	"ATOM_AUTHOR":      6,
+	"GD_WHEN":          7,
+	"GD_EMAIL":         8,
+	"GEORSS_POINT":     9,
+	"GD_IM":            10,
+	"GD_PHONENUMBER":   11,
+	"GD_POSTALADDRESS": 12,
+	"GD_RATING":        13,
+	"BLOBKEY":          17,
+	"ENTITY_PROTO":     19,
+	"INDEX_VALUE":      18,
+}
+
+func (x Property_Meaning) Enum() *Property_Meaning {
+	p := new(Property_Meaning)
+	*p = x
+	return p
+}
+func (x Property_Meaning) String() string {
+	return proto.EnumName(Property_Meaning_name, int32(x))
+}
+func (x *Property_Meaning) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Property_Meaning_value, data, "Property_Meaning")
+	if err != nil {
+		return err
+	}
+	*x = Property_Meaning(value)
+	return nil
+}
+
+type Property_FtsTokenizationOption int32
+
+const (
+	Property_HTML Property_FtsTokenizationOption = 1
+	Property_ATOM Property_FtsTokenizationOption = 2
+)
+
+var Property_FtsTokenizationOption_name = map[int32]string{
+	1: "HTML",
+	2: "ATOM",
+}
+var Property_FtsTokenizationOption_value = map[string]int32{
+	"HTML": 1,
+	"ATOM": 2,
+}
+
+func (x Property_FtsTokenizationOption) Enum() *Property_FtsTokenizationOption {
+	p := new(Property_FtsTokenizationOption)
+	*p = x
+	return p
+}
+func (x Property_FtsTokenizationOption) String() string {
+	return proto.EnumName(Property_FtsTokenizationOption_name, int32(x))
+}
+func (x *Property_FtsTokenizationOption) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Property_FtsTokenizationOption_value, data, "Property_FtsTokenizationOption")
+	if err != nil {
+		return err
+	}
+	*x = Property_FtsTokenizationOption(value)
+	return nil
+}
+
+type EntityProto_Kind int32
+
+const (
+	EntityProto_GD_CONTACT EntityProto_Kind = 1
+	EntityProto_GD_EVENT   EntityProto_Kind = 2
+	EntityProto_GD_MESSAGE EntityProto_Kind = 3
+)
+
+var EntityProto_Kind_name = map[int32]string{
+	1: "GD_CONTACT",
+	2: "GD_EVENT",
+	3: "GD_MESSAGE",
+}
+var EntityProto_Kind_value = map[string]int32{
+	"GD_CONTACT": 1,
+	"GD_EVENT":   2,
+	"GD_MESSAGE": 3,
+}
+
+func (x EntityProto_Kind) Enum() *EntityProto_Kind {
+	p := new(EntityProto_Kind)
+	*p = x
+	return p
+}
+func (x EntityProto_Kind) String() string {
+	return proto.EnumName(EntityProto_Kind_name, int32(x))
+}
+func (x *EntityProto_Kind) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(EntityProto_Kind_value, data, "EntityProto_Kind")
+	if err != nil {
+		return err
+	}
+	*x = EntityProto_Kind(value)
+	return nil
+}
+
+type Index_Property_Direction int32
+
+const (
+	Index_Property_ASCENDING  Index_Property_Direction = 1
+	Index_Property_DESCENDING Index_Property_Direction = 2
+)
+
+var Index_Property_Direction_name = map[int32]string{
+	1: "ASCENDING",
+	2: "DESCENDING",
+}
+var Index_Property_Direction_value = map[string]int32{
+	"ASCENDING":  1,
+	"DESCENDING": 2,
+}
+
+func (x Index_Property_Direction) Enum() *Index_Property_Direction {
+	p := new(Index_Property_Direction)
+	*p = x
+	return p
+}
+func (x Index_Property_Direction) String() string {
+	return proto.EnumName(Index_Property_Direction_name, int32(x))
+}
+func (x *Index_Property_Direction) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Index_Property_Direction_value, data, "Index_Property_Direction")
+	if err != nil {
+		return err
+	}
+	*x = Index_Property_Direction(value)
+	return nil
+}
+
+type CompositeIndex_State int32
+
+const (
+	CompositeIndex_WRITE_ONLY CompositeIndex_State = 1
+	CompositeIndex_READ_WRITE CompositeIndex_State = 2
+	CompositeIndex_DELETED    CompositeIndex_State = 3
+	CompositeIndex_ERROR      CompositeIndex_State = 4
+)
+
+var CompositeIndex_State_name = map[int32]string{
+	1: "WRITE_ONLY",
+	2: "READ_WRITE",
+	3: "DELETED",
+	4: "ERROR",
+}
+var CompositeIndex_State_value = map[string]int32{
+	"WRITE_ONLY": 1,
+	"READ_WRITE": 2,
+	"DELETED":    3,
+	"ERROR":      4,
+}
+
+func (x CompositeIndex_State) Enum() *CompositeIndex_State {
+	p := new(CompositeIndex_State)
+	*p = x
+	return p
+}
+func (x CompositeIndex_State) String() string {
+	return proto.EnumName(CompositeIndex_State_name, int32(x))
+}
+func (x *CompositeIndex_State) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(CompositeIndex_State_value, data, "CompositeIndex_State")
+	if err != nil {
+		return err
+	}
+	*x = CompositeIndex_State(value)
+	return nil
+}
+
+type Snapshot_Status int32
+
+const (
+	Snapshot_INACTIVE Snapshot_Status = 0
+	Snapshot_ACTIVE   Snapshot_Status = 1
+)
+
+var Snapshot_Status_name = map[int32]string{
+	0: "INACTIVE",
+	1: "ACTIVE",
+}
+var Snapshot_Status_value = map[string]int32{
+	"INACTIVE": 0,
+	"ACTIVE":   1,
+}
+
+func (x Snapshot_Status) Enum() *Snapshot_Status {
+	p := new(Snapshot_Status)
+	*p = x
+	return p
+}
+func (x Snapshot_Status) String() string {
+	return proto.EnumName(Snapshot_Status_name, int32(x))
+}
+func (x *Snapshot_Status) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Snapshot_Status_value, data, "Snapshot_Status")
+	if err != nil {
+		return err
+	}
+	*x = Snapshot_Status(value)
+	return nil
+}
+
+type Query_Hint int32
+
+const (
+	Query_ORDER_FIRST    Query_Hint = 1
+	Query_ANCESTOR_FIRST Query_Hint = 2
+	Query_FILTER_FIRST   Query_Hint = 3
+)
+
+var Query_Hint_name = map[int32]string{
+	1: "ORDER_FIRST",
+	2: "ANCESTOR_FIRST",
+	3: "FILTER_FIRST",
+}
+var Query_Hint_value = map[string]int32{
+	"ORDER_FIRST":    1,
+	"ANCESTOR_FIRST": 2,
+	"FILTER_FIRST":   3,
+}
+
+func (x Query_Hint) Enum() *Query_Hint {
+	p := new(Query_Hint)
+	*p = x
+	return p
+}
+func (x Query_Hint) String() string {
+	return proto.EnumName(Query_Hint_name, int32(x))
+}
+func (x *Query_Hint) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Query_Hint_value, data, "Query_Hint")
+	if err != nil {
+		return err
+	}
+	*x = Query_Hint(value)
+	return nil
+}
+
+type Query_Filter_Operator int32
+
+const (
+	Query_Filter_LESS_THAN             Query_Filter_Operator = 1
+	Query_Filter_LESS_THAN_OR_EQUAL    Query_Filter_Operator = 2
+	Query_Filter_GREATER_THAN          Query_Filter_Operator = 3
+	Query_Filter_GREATER_THAN_OR_EQUAL Query_Filter_Operator = 4
+	Query_Filter_EQUAL                 Query_Filter_Operator = 5
+	Query_Filter_IN                    Query_Filter_Operator = 6
+	Query_Filter_EXISTS                Query_Filter_Operator = 7
+)
+
+var Query_Filter_Operator_name = map[int32]string{
+	1: "LESS_THAN",
+	2: "LESS_THAN_OR_EQUAL",
+	3: "GREATER_THAN",
+	4: "GREATER_THAN_OR_EQUAL",
+	5: "EQUAL",
+	6: "IN",
+	7: "EXISTS",
+}
+var Query_Filter_Operator_value = map[string]int32{
+	"LESS_THAN":             1,
+	"LESS_THAN_OR_EQUAL":    2,
+	"GREATER_THAN":          3,
+	"GREATER_THAN_OR_EQUAL": 4,
+	"EQUAL":                 5,
+	"IN":                    6,
+	"EXISTS":                7,
+}
+
+func (x Query_Filter_Operator) Enum() *Query_Filter_Operator {
+	p := new(Query_Filter_Operator)
+	*p = x
+	return p
+}
+func (x Query_Filter_Operator) String() string {
+	return proto.EnumName(Query_Filter_Operator_name, int32(x))
+}
+func (x *Query_Filter_Operator) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Query_Filter_Operator_value, data, "Query_Filter_Operator")
+	if err != nil {
+		return err
+	}
+	*x = Query_Filter_Operator(value)
+	return nil
+}
+
+type Query_Order_Direction int32
+
+const (
+	Query_Order_ASCENDING  Query_Order_Direction = 1
+	Query_Order_DESCENDING Query_Order_Direction = 2
+)
+
+var Query_Order_Direction_name = map[int32]string{
+	1: "ASCENDING",
+	2: "DESCENDING",
+}
+var Query_Order_Direction_value = map[string]int32{
+	"ASCENDING":  1,
+	"DESCENDING": 2,
+}
+
+func (x Query_Order_Direction) Enum() *Query_Order_Direction {
+	p := new(Query_Order_Direction)
+	*p = x
+	return p
+}
+func (x Query_Order_Direction) String() string {
+	return proto.EnumName(Query_Order_Direction_name, int32(x))
+}
+func (x *Query_Order_Direction) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Query_Order_Direction_value, data, "Query_Order_Direction")
+	if err != nil {
+		return err
+	}
+	*x = Query_Order_Direction(value)
+	return nil
+}
+
+type Error_ErrorCode int32
+
+const (
+	Error_BAD_REQUEST                  Error_ErrorCode = 1
+	Error_CONCURRENT_TRANSACTION       Error_ErrorCode = 2
+	Error_INTERNAL_ERROR               Error_ErrorCode = 3
+	Error_NEED_INDEX                   Error_ErrorCode = 4
+	Error_TIMEOUT                      Error_ErrorCode = 5
+	Error_PERMISSION_DENIED            Error_ErrorCode = 6
+	Error_BIGTABLE_ERROR               Error_ErrorCode = 7
+	Error_COMMITTED_BUT_STILL_APPLYING Error_ErrorCode = 8
+	Error_CAPABILITY_DISABLED          Error_ErrorCode = 9
+	Error_TRY_ALTERNATE_BACKEND        Error_ErrorCode = 10
+	Error_SAFE_TIME_TOO_OLD            Error_ErrorCode = 11
+)
+
+var Error_ErrorCode_name = map[int32]string{
+	1:  "BAD_REQUEST",
+	2:  "CONCURRENT_TRANSACTION",
+	3:  "INTERNAL_ERROR",
+	4:  "NEED_INDEX",
+	5:  "TIMEOUT",
+	6:  "PERMISSION_DENIED",
+	7:  "BIGTABLE_ERROR",
+	8:  "COMMITTED_BUT_STILL_APPLYING",
+	9:  "CAPABILITY_DISABLED",
+	10: "TRY_ALTERNATE_BACKEND",
+	11: "SAFE_TIME_TOO_OLD",
+}
+var Error_ErrorCode_value = map[string]int32{
+	"BAD_REQUEST":                  1,
+	"CONCURRENT_TRANSACTION":       2,
+	"INTERNAL_ERROR":               3,
+	"NEED_INDEX":                   4,
+	"TIMEOUT":                      5,
+	"PERMISSION_DENIED":            6,
+	"BIGTABLE_ERROR":               7,
+	"COMMITTED_BUT_STILL_APPLYING": 8,
+	"CAPABILITY_DISABLED":          9,
+	"TRY_ALTERNATE_BACKEND":        10,
+	"SAFE_TIME_TOO_OLD":            11,
+}
+
+func (x Error_ErrorCode) Enum() *Error_ErrorCode {
+	p := new(Error_ErrorCode)
+	*p = x
+	return p
+}
+func (x Error_ErrorCode) String() string {
+	return proto.EnumName(Error_ErrorCode_name, int32(x))
+}
+func (x *Error_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(Error_ErrorCode_value, data, "Error_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = Error_ErrorCode(value)
+	return nil
+}
+
+type PutRequest_AutoIdPolicy int32
+
+const (
+	PutRequest_CURRENT    PutRequest_AutoIdPolicy = 0
+	PutRequest_SEQUENTIAL PutRequest_AutoIdPolicy = 1
+)
+
+var PutRequest_AutoIdPolicy_name = map[int32]string{
+	0: "CURRENT",
+	1: "SEQUENTIAL",
+}
+var PutRequest_AutoIdPolicy_value = map[string]int32{
+	"CURRENT":    0,
+	"SEQUENTIAL": 1,
+}
+
+func (x PutRequest_AutoIdPolicy) Enum() *PutRequest_AutoIdPolicy {
+	p := new(PutRequest_AutoIdPolicy)
+	*p = x
+	return p
+}
+func (x PutRequest_AutoIdPolicy) String() string {
+	return proto.EnumName(PutRequest_AutoIdPolicy_name, int32(x))
+}
+func (x *PutRequest_AutoIdPolicy) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(PutRequest_AutoIdPolicy_value, data, "PutRequest_AutoIdPolicy")
+	if err != nil {
+		return err
+	}
+	*x = PutRequest_AutoIdPolicy(value)
+	return nil
+}
+
+type Action struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *Action) Reset()         { *m = Action{} }
+func (m *Action) String() string { return proto.CompactTextString(m) }
+func (*Action) ProtoMessage()    {}
+
+type PropertyValue struct {
+	Int64Value       *int64                        `protobuf:"varint,1,opt,name=int64Value" json:"int64Value,omitempty"`
+	BooleanValue     *bool                         `protobuf:"varint,2,opt,name=booleanValue" json:"booleanValue,omitempty"`
+	StringValue      *string                       `protobuf:"bytes,3,opt,name=stringValue" json:"stringValue,omitempty"`
+	DoubleValue      *float64                      `protobuf:"fixed64,4,opt,name=doubleValue" json:"doubleValue,omitempty"`
+	Pointvalue       *PropertyValue_PointValue     `protobuf:"group,5,opt,name=PointValue" json:"pointvalue,omitempty"`
+	Uservalue        *PropertyValue_UserValue      `protobuf:"group,8,opt,name=UserValue" json:"uservalue,omitempty"`
+	Referencevalue   *PropertyValue_ReferenceValue `protobuf:"group,12,opt,name=ReferenceValue" json:"referencevalue,omitempty"`
+	XXX_unrecognized []byte                        `json:"-"`
+}
+
+func (m *PropertyValue) Reset()         { *m = PropertyValue{} }
+func (m *PropertyValue) String() string { return proto.CompactTextString(m) }
+func (*PropertyValue) ProtoMessage()    {}
+
+func (m *PropertyValue) GetInt64Value() int64 {
+	if m != nil && m.Int64Value != nil {
+		return *m.Int64Value
+	}
+	return 0
+}
+
+func (m *PropertyValue) GetBooleanValue() bool {
+	if m != nil && m.BooleanValue != nil {
+		return *m.BooleanValue
+	}
+	return false
+}
+
+func (m *PropertyValue) GetStringValue() string {
+	if m != nil && m.StringValue != nil {
+		return *m.StringValue
+	}
+	return ""
+}
+
+func (m *PropertyValue) GetDoubleValue() float64 {
+	if m != nil && m.DoubleValue != nil {
+		return *m.DoubleValue
+	}
+	return 0
+}
+
+func (m *PropertyValue) GetPointvalue() *PropertyValue_PointValue {
+	if m != nil {
+		return m.Pointvalue
+	}
+	return nil
+}
+
+func (m *PropertyValue) GetUservalue() *PropertyValue_UserValue {
+	if m != nil {
+		return m.Uservalue
+	}
+	return nil
+}
+
+func (m *PropertyValue) GetReferencevalue() *PropertyValue_ReferenceValue {
+	if m != nil {
+		return m.Referencevalue
+	}
+	return nil
+}
+
+type PropertyValue_PointValue struct {
+	X                *float64 `protobuf:"fixed64,6,req,name=x" json:"x,omitempty"`
+	Y                *float64 `protobuf:"fixed64,7,req,name=y" json:"y,omitempty"`
+	XXX_unrecognized []byte   `json:"-"`
+}
+
+func (m *PropertyValue_PointValue) Reset()         { *m = PropertyValue_PointValue{} }
+func (m *PropertyValue_PointValue) String() string { return proto.CompactTextString(m) }
+func (*PropertyValue_PointValue) ProtoMessage()    {}
+
+func (m *PropertyValue_PointValue) GetX() float64 {
+	if m != nil && m.X != nil {
+		return *m.X
+	}
+	return 0
+}
+
+func (m *PropertyValue_PointValue) GetY() float64 {
+	if m != nil && m.Y != nil {
+		return *m.Y
+	}
+	return 0
+}
+
+type PropertyValue_UserValue struct {
+	Email             *string `protobuf:"bytes,9,req,name=email" json:"email,omitempty"`
+	AuthDomain        *string `protobuf:"bytes,10,req,name=auth_domain" json:"auth_domain,omitempty"`
+	Nickname          *string `protobuf:"bytes,11,opt,name=nickname" json:"nickname,omitempty"`
+	FederatedIdentity *string `protobuf:"bytes,21,opt,name=federated_identity" json:"federated_identity,omitempty"`
+	FederatedProvider *string `protobuf:"bytes,22,opt,name=federated_provider" json:"federated_provider,omitempty"`
+	XXX_unrecognized  []byte  `json:"-"`
+}
+
+func (m *PropertyValue_UserValue) Reset()         { *m = PropertyValue_UserValue{} }
+func (m *PropertyValue_UserValue) String() string { return proto.CompactTextString(m) }
+func (*PropertyValue_UserValue) ProtoMessage()    {}
+
+func (m *PropertyValue_UserValue) GetEmail() string {
+	if m != nil && m.Email != nil {
+		return *m.Email
+	}
+	return ""
+}
+
+func (m *PropertyValue_UserValue) GetAuthDomain() string {
+	if m != nil && m.AuthDomain != nil {
+		return *m.AuthDomain
+	}
+	return ""
+}
+
+func (m *PropertyValue_UserValue) GetNickname() string {
+	if m != nil && m.Nickname != nil {
+		return *m.Nickname
+	}
+	return ""
+}
+
+func (m *PropertyValue_UserValue) GetFederatedIdentity() string {
+	if m != nil && m.FederatedIdentity != nil {
+		return *m.FederatedIdentity
+	}
+	return ""
+}
+
+func (m *PropertyValue_UserValue) GetFederatedProvider() string {
+	if m != nil && m.FederatedProvider != nil {
+		return *m.FederatedProvider
+	}
+	return ""
+}
+
+type PropertyValue_ReferenceValue struct {
+	App              *string                                     `protobuf:"bytes,13,req,name=app" json:"app,omitempty"`
+	NameSpace        *string                                     `protobuf:"bytes,20,opt,name=name_space" json:"name_space,omitempty"`
+	Pathelement      []*PropertyValue_ReferenceValue_PathElement `protobuf:"group,14,rep,name=PathElement" json:"pathelement,omitempty"`
+	XXX_unrecognized []byte                                      `json:"-"`
+}
+
+func (m *PropertyValue_ReferenceValue) Reset()         { *m = PropertyValue_ReferenceValue{} }
+func (m *PropertyValue_ReferenceValue) String() string { return proto.CompactTextString(m) }
+func (*PropertyValue_ReferenceValue) ProtoMessage()    {}
+
+func (m *PropertyValue_ReferenceValue) GetApp() string {
+	if m != nil && m.App != nil {
+		return *m.App
+	}
+	return ""
+}
+
+func (m *PropertyValue_ReferenceValue) GetNameSpace() string {
+	if m != nil && m.NameSpace != nil {
+		return *m.NameSpace
+	}
+	return ""
+}
+
+func (m *PropertyValue_ReferenceValue) GetPathelement() []*PropertyValue_ReferenceValue_PathElement {
+	if m != nil {
+		return m.Pathelement
+	}
+	return nil
+}
+
+type PropertyValue_ReferenceValue_PathElement struct {
+	Type             *string `protobuf:"bytes,15,req,name=type" json:"type,omitempty"`
+	Id               *int64  `protobuf:"varint,16,opt,name=id" json:"id,omitempty"`
+	Name             *string `protobuf:"bytes,17,opt,name=name" json:"name,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *PropertyValue_ReferenceValue_PathElement) Reset() {
+	*m = PropertyValue_ReferenceValue_PathElement{}
+}
+func (m *PropertyValue_ReferenceValue_PathElement) String() string { return proto.CompactTextString(m) }
+func (*PropertyValue_ReferenceValue_PathElement) ProtoMessage()    {}
+
+func (m *PropertyValue_ReferenceValue_PathElement) GetType() string {
+	if m != nil && m.Type != nil {
+		return *m.Type
+	}
+	return ""
+}
+
+func (m *PropertyValue_ReferenceValue_PathElement) GetId() int64 {
+	if m != nil && m.Id != nil {
+		return *m.Id
+	}
+	return 0
+}
+
+func (m *PropertyValue_ReferenceValue_PathElement) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+type Property struct {
+	Meaning               *Property_Meaning               `protobuf:"varint,1,opt,name=meaning,enum=appengine.Property_Meaning,def=0" json:"meaning,omitempty"`
+	MeaningUri            *string                         `protobuf:"bytes,2,opt,name=meaning_uri" json:"meaning_uri,omitempty"`
+	Name                  *string                         `protobuf:"bytes,3,req,name=name" json:"name,omitempty"`
+	Value                 *PropertyValue                  `protobuf:"bytes,5,req,name=value" json:"value,omitempty"`
+	Multiple              *bool                           `protobuf:"varint,4,req,name=multiple" json:"multiple,omitempty"`
+	Searchable            *bool                           `protobuf:"varint,6,opt,name=searchable,def=0" json:"searchable,omitempty"`
+	FtsTokenizationOption *Property_FtsTokenizationOption `protobuf:"varint,8,opt,name=fts_tokenization_option,enum=appengine.Property_FtsTokenizationOption" json:"fts_tokenization_option,omitempty"`
+	Locale                *string                         `protobuf:"bytes,9,opt,name=locale,def=en" json:"locale,omitempty"`
+	XXX_unrecognized      []byte                          `json:"-"`
+}
+
+func (m *Property) Reset()         { *m = Property{} }
+func (m *Property) String() string { return proto.CompactTextString(m) }
+func (*Property) ProtoMessage()    {}
+
+const Default_Property_Meaning Property_Meaning = Property_NO_MEANING
+const Default_Property_Searchable bool = false
+const Default_Property_Locale string = "en"
+
+func (m *Property) GetMeaning() Property_Meaning {
+	if m != nil && m.Meaning != nil {
+		return *m.Meaning
+	}
+	return Default_Property_Meaning
+}
+
+func (m *Property) GetMeaningUri() string {
+	if m != nil && m.MeaningUri != nil {
+		return *m.MeaningUri
+	}
+	return ""
+}
+
+func (m *Property) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+func (m *Property) GetValue() *PropertyValue {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+func (m *Property) GetMultiple() bool {
+	if m != nil && m.Multiple != nil {
+		return *m.Multiple
+	}
+	return false
+}
+
+func (m *Property) GetSearchable() bool {
+	if m != nil && m.Searchable != nil {
+		return *m.Searchable
+	}
+	return Default_Property_Searchable
+}
+
+func (m *Property) GetFtsTokenizationOption() Property_FtsTokenizationOption {
+	if m != nil && m.FtsTokenizationOption != nil {
+		return *m.FtsTokenizationOption
+	}
+	return Property_HTML
+}
+
+func (m *Property) GetLocale() string {
+	if m != nil && m.Locale != nil {
+		return *m.Locale
+	}
+	return Default_Property_Locale
+}
+
+type Path struct {
+	Element          []*Path_Element `protobuf:"group,1,rep,name=Element" json:"element,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *Path) Reset()         { *m = Path{} }
+func (m *Path) String() string { return proto.CompactTextString(m) }
+func (*Path) ProtoMessage()    {}
+
+func (m *Path) GetElement() []*Path_Element {
+	if m != nil {
+		return m.Element
+	}
+	return nil
+}
+
+type Path_Element struct {
+	Type             *string `protobuf:"bytes,2,req,name=type" json:"type,omitempty"`
+	Id               *int64  `protobuf:"varint,3,opt,name=id" json:"id,omitempty"`
+	Name             *string `protobuf:"bytes,4,opt,name=name" json:"name,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *Path_Element) Reset()         { *m = Path_Element{} }
+func (m *Path_Element) String() string { return proto.CompactTextString(m) }
+func (*Path_Element) ProtoMessage()    {}
+
+func (m *Path_Element) GetType() string {
+	if m != nil && m.Type != nil {
+		return *m.Type
+	}
+	return ""
+}
+
+func (m *Path_Element) GetId() int64 {
+	if m != nil && m.Id != nil {
+		return *m.Id
+	}
+	return 0
+}
+
+func (m *Path_Element) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+type Reference struct {
+	App              *string `protobuf:"bytes,13,req,name=app" json:"app,omitempty"`
+	NameSpace        *string `protobuf:"bytes,20,opt,name=name_space" json:"name_space,omitempty"`
+	Path             *Path   `protobuf:"bytes,14,req,name=path" json:"path,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *Reference) Reset()         { *m = Reference{} }
+func (m *Reference) String() string { return proto.CompactTextString(m) }
+func (*Reference) ProtoMessage()    {}
+
+func (m *Reference) GetApp() string {
+	if m != nil && m.App != nil {
+		return *m.App
+	}
+	return ""
+}
+
+func (m *Reference) GetNameSpace() string {
+	if m != nil && m.NameSpace != nil {
+		return *m.NameSpace
+	}
+	return ""
+}
+
+func (m *Reference) GetPath() *Path {
+	if m != nil {
+		return m.Path
+	}
+	return nil
+}
+
+type User struct {
+	Email             *string `protobuf:"bytes,1,req,name=email" json:"email,omitempty"`
+	AuthDomain        *string `protobuf:"bytes,2,req,name=auth_domain" json:"auth_domain,omitempty"`
+	Nickname          *string `protobuf:"bytes,3,opt,name=nickname" json:"nickname,omitempty"`
+	FederatedIdentity *string `protobuf:"bytes,6,opt,name=federated_identity" json:"federated_identity,omitempty"`
+	FederatedProvider *string `protobuf:"bytes,7,opt,name=federated_provider" json:"federated_provider,omitempty"`
+	XXX_unrecognized  []byte  `json:"-"`
+}
+
+func (m *User) Reset()         { *m = User{} }
+func (m *User) String() string { return proto.CompactTextString(m) }
+func (*User) ProtoMessage()    {}
+
+func (m *User) GetEmail() string {
+	if m != nil && m.Email != nil {
+		return *m.Email
+	}
+	return ""
+}
+
+func (m *User) GetAuthDomain() string {
+	if m != nil && m.AuthDomain != nil {
+		return *m.AuthDomain
+	}
+	return ""
+}
+
+func (m *User) GetNickname() string {
+	if m != nil && m.Nickname != nil {
+		return *m.Nickname
+	}
+	return ""
+}
+
+func (m *User) GetFederatedIdentity() string {
+	if m != nil && m.FederatedIdentity != nil {
+		return *m.FederatedIdentity
+	}
+	return ""
+}
+
+func (m *User) GetFederatedProvider() string {
+	if m != nil && m.FederatedProvider != nil {
+		return *m.FederatedProvider
+	}
+	return ""
+}
+
+type EntityProto struct {
+	Key              *Reference        `protobuf:"bytes,13,req,name=key" json:"key,omitempty"`
+	EntityGroup      *Path             `protobuf:"bytes,16,req,name=entity_group" json:"entity_group,omitempty"`
+	Owner            *User             `protobuf:"bytes,17,opt,name=owner" json:"owner,omitempty"`
+	Kind             *EntityProto_Kind `protobuf:"varint,4,opt,name=kind,enum=appengine.EntityProto_Kind" json:"kind,omitempty"`
+	KindUri          *string           `protobuf:"bytes,5,opt,name=kind_uri" json:"kind_uri,omitempty"`
+	Property         []*Property       `protobuf:"bytes,14,rep,name=property" json:"property,omitempty"`
+	RawProperty      []*Property       `protobuf:"bytes,15,rep,name=raw_property" json:"raw_property,omitempty"`
+	Rank             *int32            `protobuf:"varint,18,opt,name=rank" json:"rank,omitempty"`
+	XXX_unrecognized []byte            `json:"-"`
+}
+
+func (m *EntityProto) Reset()         { *m = EntityProto{} }
+func (m *EntityProto) String() string { return proto.CompactTextString(m) }
+func (*EntityProto) ProtoMessage()    {}
+
+func (m *EntityProto) GetKey() *Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *EntityProto) GetEntityGroup() *Path {
+	if m != nil {
+		return m.EntityGroup
+	}
+	return nil
+}
+
+func (m *EntityProto) GetOwner() *User {
+	if m != nil {
+		return m.Owner
+	}
+	return nil
+}
+
+func (m *EntityProto) GetKind() EntityProto_Kind {
+	if m != nil && m.Kind != nil {
+		return *m.Kind
+	}
+	return EntityProto_GD_CONTACT
+}
+
+func (m *EntityProto) GetKindUri() string {
+	if m != nil && m.KindUri != nil {
+		return *m.KindUri
+	}
+	return ""
+}
+
+func (m *EntityProto) GetProperty() []*Property {
+	if m != nil {
+		return m.Property
+	}
+	return nil
+}
+
+func (m *EntityProto) GetRawProperty() []*Property {
+	if m != nil {
+		return m.RawProperty
+	}
+	return nil
+}
+
+func (m *EntityProto) GetRank() int32 {
+	if m != nil && m.Rank != nil {
+		return *m.Rank
+	}
+	return 0
+}
+
+type CompositeProperty struct {
+	IndexId          *int64   `protobuf:"varint,1,req,name=index_id" json:"index_id,omitempty"`
+	Value            []string `protobuf:"bytes,2,rep,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte   `json:"-"`
+}
+
+func (m *CompositeProperty) Reset()         { *m = CompositeProperty{} }
+func (m *CompositeProperty) String() string { return proto.CompactTextString(m) }
+func (*CompositeProperty) ProtoMessage()    {}
+
+func (m *CompositeProperty) GetIndexId() int64 {
+	if m != nil && m.IndexId != nil {
+		return *m.IndexId
+	}
+	return 0
+}
+
+func (m *CompositeProperty) GetValue() []string {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+type Index struct {
+	EntityType       *string           `protobuf:"bytes,1,req,name=entity_type" json:"entity_type,omitempty"`
+	Ancestor         *bool             `protobuf:"varint,5,req,name=ancestor" json:"ancestor,omitempty"`
+	Property         []*Index_Property `protobuf:"group,2,rep,name=Property" json:"property,omitempty"`
+	XXX_unrecognized []byte            `json:"-"`
+}
+
+func (m *Index) Reset()         { *m = Index{} }
+func (m *Index) String() string { return proto.CompactTextString(m) }
+func (*Index) ProtoMessage()    {}
+
+func (m *Index) GetEntityType() string {
+	if m != nil && m.EntityType != nil {
+		return *m.EntityType
+	}
+	return ""
+}
+
+func (m *Index) GetAncestor() bool {
+	if m != nil && m.Ancestor != nil {
+		return *m.Ancestor
+	}
+	return false
+}
+
+func (m *Index) GetProperty() []*Index_Property {
+	if m != nil {
+		return m.Property
+	}
+	return nil
+}
+
+type Index_Property struct {
+	Name             *string                   `protobuf:"bytes,3,req,name=name" json:"name,omitempty"`
+	Direction        *Index_Property_Direction `protobuf:"varint,4,opt,name=direction,enum=appengine.Index_Property_Direction,def=1" json:"direction,omitempty"`
+	XXX_unrecognized []byte                    `json:"-"`
+}
+
+func (m *Index_Property) Reset()         { *m = Index_Property{} }
+func (m *Index_Property) String() string { return proto.CompactTextString(m) }
+func (*Index_Property) ProtoMessage()    {}
+
+const Default_Index_Property_Direction Index_Property_Direction = Index_Property_ASCENDING
+
+func (m *Index_Property) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+func (m *Index_Property) GetDirection() Index_Property_Direction {
+	if m != nil && m.Direction != nil {
+		return *m.Direction
+	}
+	return Default_Index_Property_Direction
+}
+
+type CompositeIndex struct {
+	AppId             *string               `protobuf:"bytes,1,req,name=app_id" json:"app_id,omitempty"`
+	Id                *int64                `protobuf:"varint,2,req,name=id" json:"id,omitempty"`
+	Definition        *Index                `protobuf:"bytes,3,req,name=definition" json:"definition,omitempty"`
+	State             *CompositeIndex_State `protobuf:"varint,4,req,name=state,enum=appengine.CompositeIndex_State" json:"state,omitempty"`
+	OnlyUseIfRequired *bool                 `protobuf:"varint,6,opt,name=only_use_if_required,def=0" json:"only_use_if_required,omitempty"`
+	XXX_unrecognized  []byte                `json:"-"`
+}
+
+func (m *CompositeIndex) Reset()         { *m = CompositeIndex{} }
+func (m *CompositeIndex) String() string { return proto.CompactTextString(m) }
+func (*CompositeIndex) ProtoMessage()    {}
+
+const Default_CompositeIndex_OnlyUseIfRequired bool = false
+
+func (m *CompositeIndex) GetAppId() string {
+	if m != nil && m.AppId != nil {
+		return *m.AppId
+	}
+	return ""
+}
+
+func (m *CompositeIndex) GetId() int64 {
+	if m != nil && m.Id != nil {
+		return *m.Id
+	}
+	return 0
+}
+
+func (m *CompositeIndex) GetDefinition() *Index {
+	if m != nil {
+		return m.Definition
+	}
+	return nil
+}
+
+func (m *CompositeIndex) GetState() CompositeIndex_State {
+	if m != nil && m.State != nil {
+		return *m.State
+	}
+	return CompositeIndex_WRITE_ONLY
+}
+
+func (m *CompositeIndex) GetOnlyUseIfRequired() bool {
+	if m != nil && m.OnlyUseIfRequired != nil {
+		return *m.OnlyUseIfRequired
+	}
+	return Default_CompositeIndex_OnlyUseIfRequired
+}
+
+type IndexPostfix struct {
+	IndexValue       []*IndexPostfix_IndexValue `protobuf:"bytes,1,rep,name=index_value" json:"index_value,omitempty"`
+	Key              *Reference                 `protobuf:"bytes,2,opt,name=key" json:"key,omitempty"`
+	Before           *bool                      `protobuf:"varint,3,opt,name=before,def=1" json:"before,omitempty"`
+	XXX_unrecognized []byte                     `json:"-"`
+}
+
+func (m *IndexPostfix) Reset()         { *m = IndexPostfix{} }
+func (m *IndexPostfix) String() string { return proto.CompactTextString(m) }
+func (*IndexPostfix) ProtoMessage()    {}
+
+const Default_IndexPostfix_Before bool = true
+
+func (m *IndexPostfix) GetIndexValue() []*IndexPostfix_IndexValue {
+	if m != nil {
+		return m.IndexValue
+	}
+	return nil
+}
+
+func (m *IndexPostfix) GetKey() *Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *IndexPostfix) GetBefore() bool {
+	if m != nil && m.Before != nil {
+		return *m.Before
+	}
+	return Default_IndexPostfix_Before
+}
+
+type IndexPostfix_IndexValue struct {
+	PropertyName     *string        `protobuf:"bytes,1,req,name=property_name" json:"property_name,omitempty"`
+	Value            *PropertyValue `protobuf:"bytes,2,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte         `json:"-"`
+}
+
+func (m *IndexPostfix_IndexValue) Reset()         { *m = IndexPostfix_IndexValue{} }
+func (m *IndexPostfix_IndexValue) String() string { return proto.CompactTextString(m) }
+func (*IndexPostfix_IndexValue) ProtoMessage()    {}
+
+func (m *IndexPostfix_IndexValue) GetPropertyName() string {
+	if m != nil && m.PropertyName != nil {
+		return *m.PropertyName
+	}
+	return ""
+}
+
+func (m *IndexPostfix_IndexValue) GetValue() *PropertyValue {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+type IndexPosition struct {
+	Key              *string `protobuf:"bytes,1,opt,name=key" json:"key,omitempty"`
+	Before           *bool   `protobuf:"varint,2,opt,name=before,def=1" json:"before,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *IndexPosition) Reset()         { *m = IndexPosition{} }
+func (m *IndexPosition) String() string { return proto.CompactTextString(m) }
+func (*IndexPosition) ProtoMessage()    {}
+
+const Default_IndexPosition_Before bool = true
+
+func (m *IndexPosition) GetKey() string {
+	if m != nil && m.Key != nil {
+		return *m.Key
+	}
+	return ""
+}
+
+func (m *IndexPosition) GetBefore() bool {
+	if m != nil && m.Before != nil {
+		return *m.Before
+	}
+	return Default_IndexPosition_Before
+}
+
+type Snapshot struct {
+	Ts               *int64 `protobuf:"varint,1,req,name=ts" json:"ts,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *Snapshot) Reset()         { *m = Snapshot{} }
+func (m *Snapshot) String() string { return proto.CompactTextString(m) }
+func (*Snapshot) ProtoMessage()    {}
+
+func (m *Snapshot) GetTs() int64 {
+	if m != nil && m.Ts != nil {
+		return *m.Ts
+	}
+	return 0
+}
+
+type InternalHeader struct {
+	Qos              *string `protobuf:"bytes,1,opt,name=qos" json:"qos,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *InternalHeader) Reset()         { *m = InternalHeader{} }
+func (m *InternalHeader) String() string { return proto.CompactTextString(m) }
+func (*InternalHeader) ProtoMessage()    {}
+
+func (m *InternalHeader) GetQos() string {
+	if m != nil && m.Qos != nil {
+		return *m.Qos
+	}
+	return ""
+}
+
+type Transaction struct {
+	Header           *InternalHeader `protobuf:"bytes,4,opt,name=header" json:"header,omitempty"`
+	Handle           *uint64         `protobuf:"fixed64,1,req,name=handle" json:"handle,omitempty"`
+	App              *string         `protobuf:"bytes,2,req,name=app" json:"app,omitempty"`
+	MarkChanges      *bool           `protobuf:"varint,3,opt,name=mark_changes,def=0" json:"mark_changes,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *Transaction) Reset()         { *m = Transaction{} }
+func (m *Transaction) String() string { return proto.CompactTextString(m) }
+func (*Transaction) ProtoMessage()    {}
+
+const Default_Transaction_MarkChanges bool = false
+
+func (m *Transaction) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *Transaction) GetHandle() uint64 {
+	if m != nil && m.Handle != nil {
+		return *m.Handle
+	}
+	return 0
+}
+
+func (m *Transaction) GetApp() string {
+	if m != nil && m.App != nil {
+		return *m.App
+	}
+	return ""
+}
+
+func (m *Transaction) GetMarkChanges() bool {
+	if m != nil && m.MarkChanges != nil {
+		return *m.MarkChanges
+	}
+	return Default_Transaction_MarkChanges
+}
+
+type Query struct {
+	Header              *InternalHeader   `protobuf:"bytes,39,opt,name=header" json:"header,omitempty"`
+	App                 *string           `protobuf:"bytes,1,req,name=app" json:"app,omitempty"`
+	NameSpace           *string           `protobuf:"bytes,29,opt,name=name_space" json:"name_space,omitempty"`
+	Kind                *string           `protobuf:"bytes,3,opt,name=kind" json:"kind,omitempty"`
+	Ancestor            *Reference        `protobuf:"bytes,17,opt,name=ancestor" json:"ancestor,omitempty"`
+	Filter              []*Query_Filter   `protobuf:"group,4,rep,name=Filter" json:"filter,omitempty"`
+	SearchQuery         *string           `protobuf:"bytes,8,opt,name=search_query" json:"search_query,omitempty"`
+	Order               []*Query_Order    `protobuf:"group,9,rep,name=Order" json:"order,omitempty"`
+	Hint                *Query_Hint       `protobuf:"varint,18,opt,name=hint,enum=appengine.Query_Hint" json:"hint,omitempty"`
+	Count               *int32            `protobuf:"varint,23,opt,name=count" json:"count,omitempty"`
+	Offset              *int32            `protobuf:"varint,12,opt,name=offset,def=0" json:"offset,omitempty"`
+	Limit               *int32            `protobuf:"varint,16,opt,name=limit" json:"limit,omitempty"`
+	CompiledCursor      *CompiledCursor   `protobuf:"bytes,30,opt,name=compiled_cursor" json:"compiled_cursor,omitempty"`
+	EndCompiledCursor   *CompiledCursor   `protobuf:"bytes,31,opt,name=end_compiled_cursor" json:"end_compiled_cursor,omitempty"`
+	CompositeIndex      []*CompositeIndex `protobuf:"bytes,19,rep,name=composite_index" json:"composite_index,omitempty"`
+	RequirePerfectPlan  *bool             `protobuf:"varint,20,opt,name=require_perfect_plan,def=0" json:"require_perfect_plan,omitempty"`
+	KeysOnly            *bool             `protobuf:"varint,21,opt,name=keys_only,def=0" json:"keys_only,omitempty"`
+	Transaction         *Transaction      `protobuf:"bytes,22,opt,name=transaction" json:"transaction,omitempty"`
+	Compile             *bool             `protobuf:"varint,25,opt,name=compile,def=0" json:"compile,omitempty"`
+	FailoverMs          *int64            `protobuf:"varint,26,opt,name=failover_ms" json:"failover_ms,omitempty"`
+	Strong              *bool             `protobuf:"varint,32,opt,name=strong" json:"strong,omitempty"`
+	PropertyName        []string          `protobuf:"bytes,33,rep,name=property_name" json:"property_name,omitempty"`
+	GroupByPropertyName []string          `protobuf:"bytes,34,rep,name=group_by_property_name" json:"group_by_property_name,omitempty"`
+	Distinct            *bool             `protobuf:"varint,24,opt,name=distinct" json:"distinct,omitempty"`
+	MinSafeTimeSeconds  *int64            `protobuf:"varint,35,opt,name=min_safe_time_seconds" json:"min_safe_time_seconds,omitempty"`
+	SafeReplicaName     []string          `protobuf:"bytes,36,rep,name=safe_replica_name" json:"safe_replica_name,omitempty"`
+	PersistOffset       *bool             `protobuf:"varint,37,opt,name=persist_offset,def=0" json:"persist_offset,omitempty"`
+	XXX_unrecognized    []byte            `json:"-"`
+}
+
+func (m *Query) Reset()         { *m = Query{} }
+func (m *Query) String() string { return proto.CompactTextString(m) }
+func (*Query) ProtoMessage()    {}
+
+const Default_Query_Offset int32 = 0
+const Default_Query_RequirePerfectPlan bool = false
+const Default_Query_KeysOnly bool = false
+const Default_Query_Compile bool = false
+const Default_Query_PersistOffset bool = false
+
+func (m *Query) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *Query) GetApp() string {
+	if m != nil && m.App != nil {
+		return *m.App
+	}
+	return ""
+}
+
+func (m *Query) GetNameSpace() string {
+	if m != nil && m.NameSpace != nil {
+		return *m.NameSpace
+	}
+	return ""
+}
+
+func (m *Query) GetKind() string {
+	if m != nil && m.Kind != nil {
+		return *m.Kind
+	}
+	return ""
+}
+
+func (m *Query) GetAncestor() *Reference {
+	if m != nil {
+		return m.Ancestor
+	}
+	return nil
+}
+
+func (m *Query) GetFilter() []*Query_Filter {
+	if m != nil {
+		return m.Filter
+	}
+	return nil
+}
+
+func (m *Query) GetSearchQuery() string {
+	if m != nil && m.SearchQuery != nil {
+		return *m.SearchQuery
+	}
+	return ""
+}
+
+func (m *Query) GetOrder() []*Query_Order {
+	if m != nil {
+		return m.Order
+	}
+	return nil
+}
+
+func (m *Query) GetHint() Query_Hint {
+	if m != nil && m.Hint != nil {
+		return *m.Hint
+	}
+	return Query_ORDER_FIRST
+}
+
+func (m *Query) GetCount() int32 {
+	if m != nil && m.Count != nil {
+		return *m.Count
+	}
+	return 0
+}
+
+func (m *Query) GetOffset() int32 {
+	if m != nil && m.Offset != nil {
+		return *m.Offset
+	}
+	return Default_Query_Offset
+}
+
+func (m *Query) GetLimit() int32 {
+	if m != nil && m.Limit != nil {
+		return *m.Limit
+	}
+	return 0
+}
+
+func (m *Query) GetCompiledCursor() *CompiledCursor {
+	if m != nil {
+		return m.CompiledCursor
+	}
+	return nil
+}
+
+func (m *Query) GetEndCompiledCursor() *CompiledCursor {
+	if m != nil {
+		return m.EndCompiledCursor
+	}
+	return nil
+}
+
+func (m *Query) GetCompositeIndex() []*CompositeIndex {
+	if m != nil {
+		return m.CompositeIndex
+	}
+	return nil
+}
+
+func (m *Query) GetRequirePerfectPlan() bool {
+	if m != nil && m.RequirePerfectPlan != nil {
+		return *m.RequirePerfectPlan
+	}
+	return Default_Query_RequirePerfectPlan
+}
+
+func (m *Query) GetKeysOnly() bool {
+	if m != nil && m.KeysOnly != nil {
+		return *m.KeysOnly
+	}
+	return Default_Query_KeysOnly
+}
+
+func (m *Query) GetTransaction() *Transaction {
+	if m != nil {
+		return m.Transaction
+	}
+	return nil
+}
+
+func (m *Query) GetCompile() bool {
+	if m != nil && m.Compile != nil {
+		return *m.Compile
+	}
+	return Default_Query_Compile
+}
+
+func (m *Query) GetFailoverMs() int64 {
+	if m != nil && m.FailoverMs != nil {
+		return *m.FailoverMs
+	}
+	return 0
+}
+
+func (m *Query) GetStrong() bool {
+	if m != nil && m.Strong != nil {
+		return *m.Strong
+	}
+	return false
+}
+
+func (m *Query) GetPropertyName() []string {
+	if m != nil {
+		return m.PropertyName
+	}
+	return nil
+}
+
+func (m *Query) GetGroupByPropertyName() []string {
+	if m != nil {
+		return m.GroupByPropertyName
+	}
+	return nil
+}
+
+func (m *Query) GetDistinct() bool {
+	if m != nil && m.Distinct != nil {
+		return *m.Distinct
+	}
+	return false
+}
+
+func (m *Query) GetMinSafeTimeSeconds() int64 {
+	if m != nil && m.MinSafeTimeSeconds != nil {
+		return *m.MinSafeTimeSeconds
+	}
+	return 0
+}
+
+func (m *Query) GetSafeReplicaName() []string {
+	if m != nil {
+		return m.SafeReplicaName
+	}
+	return nil
+}
+
+func (m *Query) GetPersistOffset() bool {
+	if m != nil && m.PersistOffset != nil {
+		return *m.PersistOffset
+	}
+	return Default_Query_PersistOffset
+}
+
+type Query_Filter struct {
+	Op               *Query_Filter_Operator `protobuf:"varint,6,req,name=op,enum=appengine.Query_Filter_Operator" json:"op,omitempty"`
+	Property         []*Property            `protobuf:"bytes,14,rep,name=property" json:"property,omitempty"`
+	XXX_unrecognized []byte                 `json:"-"`
+}
+
+func (m *Query_Filter) Reset()         { *m = Query_Filter{} }
+func (m *Query_Filter) String() string { return proto.CompactTextString(m) }
+func (*Query_Filter) ProtoMessage()    {}
+
+func (m *Query_Filter) GetOp() Query_Filter_Operator {
+	if m != nil && m.Op != nil {
+		return *m.Op
+	}
+	return Query_Filter_LESS_THAN
+}
+
+func (m *Query_Filter) GetProperty() []*Property {
+	if m != nil {
+		return m.Property
+	}
+	return nil
+}
+
+type Query_Order struct {
+	Property         *string                `protobuf:"bytes,10,req,name=property" json:"property,omitempty"`
+	Direction        *Query_Order_Direction `protobuf:"varint,11,opt,name=direction,enum=appengine.Query_Order_Direction,def=1" json:"direction,omitempty"`
+	XXX_unrecognized []byte                 `json:"-"`
+}
+
+func (m *Query_Order) Reset()         { *m = Query_Order{} }
+func (m *Query_Order) String() string { return proto.CompactTextString(m) }
+func (*Query_Order) ProtoMessage()    {}
+
+const Default_Query_Order_Direction Query_Order_Direction = Query_Order_ASCENDING
+
+func (m *Query_Order) GetProperty() string {
+	if m != nil && m.Property != nil {
+		return *m.Property
+	}
+	return ""
+}
+
+func (m *Query_Order) GetDirection() Query_Order_Direction {
+	if m != nil && m.Direction != nil {
+		return *m.Direction
+	}
+	return Default_Query_Order_Direction
+}
+
+type CompiledQuery struct {
+	Primaryscan       *CompiledQuery_PrimaryScan     `protobuf:"group,1,req,name=PrimaryScan" json:"primaryscan,omitempty"`
+	Mergejoinscan     []*CompiledQuery_MergeJoinScan `protobuf:"group,7,rep,name=MergeJoinScan" json:"mergejoinscan,omitempty"`
+	IndexDef          *Index                         `protobuf:"bytes,21,opt,name=index_def" json:"index_def,omitempty"`
+	Offset            *int32                         `protobuf:"varint,10,opt,name=offset,def=0" json:"offset,omitempty"`
+	Limit             *int32                         `protobuf:"varint,11,opt,name=limit" json:"limit,omitempty"`
+	KeysOnly          *bool                          `protobuf:"varint,12,req,name=keys_only" json:"keys_only,omitempty"`
+	PropertyName      []string                       `protobuf:"bytes,24,rep,name=property_name" json:"property_name,omitempty"`
+	DistinctInfixSize *int32                         `protobuf:"varint,25,opt,name=distinct_infix_size" json:"distinct_infix_size,omitempty"`
+	Entityfilter      *CompiledQuery_EntityFilter    `protobuf:"group,13,opt,name=EntityFilter" json:"entityfilter,omitempty"`
+	XXX_unrecognized  []byte                         `json:"-"`
+}
+
+func (m *CompiledQuery) Reset()         { *m = CompiledQuery{} }
+func (m *CompiledQuery) String() string { return proto.CompactTextString(m) }
+func (*CompiledQuery) ProtoMessage()    {}
+
+const Default_CompiledQuery_Offset int32 = 0
+
+func (m *CompiledQuery) GetPrimaryscan() *CompiledQuery_PrimaryScan {
+	if m != nil {
+		return m.Primaryscan
+	}
+	return nil
+}
+
+func (m *CompiledQuery) GetMergejoinscan() []*CompiledQuery_MergeJoinScan {
+	if m != nil {
+		return m.Mergejoinscan
+	}
+	return nil
+}
+
+func (m *CompiledQuery) GetIndexDef() *Index {
+	if m != nil {
+		return m.IndexDef
+	}
+	return nil
+}
+
+func (m *CompiledQuery) GetOffset() int32 {
+	if m != nil && m.Offset != nil {
+		return *m.Offset
+	}
+	return Default_CompiledQuery_Offset
+}
+
+func (m *CompiledQuery) GetLimit() int32 {
+	if m != nil && m.Limit != nil {
+		return *m.Limit
+	}
+	return 0
+}
+
+func (m *CompiledQuery) GetKeysOnly() bool {
+	if m != nil && m.KeysOnly != nil {
+		return *m.KeysOnly
+	}
+	return false
+}
+
+func (m *CompiledQuery) GetPropertyName() []string {
+	if m != nil {
+		return m.PropertyName
+	}
+	return nil
+}
+
+func (m *CompiledQuery) GetDistinctInfixSize() int32 {
+	if m != nil && m.DistinctInfixSize != nil {
+		return *m.DistinctInfixSize
+	}
+	return 0
+}
+
+func (m *CompiledQuery) GetEntityfilter() *CompiledQuery_EntityFilter {
+	if m != nil {
+		return m.Entityfilter
+	}
+	return nil
+}
+
+type CompiledQuery_PrimaryScan struct {
+	IndexName                  *string  `protobuf:"bytes,2,opt,name=index_name" json:"index_name,omitempty"`
+	StartKey                   *string  `protobuf:"bytes,3,opt,name=start_key" json:"start_key,omitempty"`
+	StartInclusive             *bool    `protobuf:"varint,4,opt,name=start_inclusive" json:"start_inclusive,omitempty"`
+	EndKey                     *string  `protobuf:"bytes,5,opt,name=end_key" json:"end_key,omitempty"`
+	EndInclusive               *bool    `protobuf:"varint,6,opt,name=end_inclusive" json:"end_inclusive,omitempty"`
+	StartPostfixValue          []string `protobuf:"bytes,22,rep,name=start_postfix_value" json:"start_postfix_value,omitempty"`
+	EndPostfixValue            []string `protobuf:"bytes,23,rep,name=end_postfix_value" json:"end_postfix_value,omitempty"`
+	EndUnappliedLogTimestampUs *int64   `protobuf:"varint,19,opt,name=end_unapplied_log_timestamp_us" json:"end_unapplied_log_timestamp_us,omitempty"`
+	XXX_unrecognized           []byte   `json:"-"`
+}
+
+func (m *CompiledQuery_PrimaryScan) Reset()         { *m = CompiledQuery_PrimaryScan{} }
+func (m *CompiledQuery_PrimaryScan) String() string { return proto.CompactTextString(m) }
+func (*CompiledQuery_PrimaryScan) ProtoMessage()    {}
+
+func (m *CompiledQuery_PrimaryScan) GetIndexName() string {
+	if m != nil && m.IndexName != nil {
+		return *m.IndexName
+	}
+	return ""
+}
+
+func (m *CompiledQuery_PrimaryScan) GetStartKey() string {
+	if m != nil && m.StartKey != nil {
+		return *m.StartKey
+	}
+	return ""
+}
+
+func (m *CompiledQuery_PrimaryScan) GetStartInclusive() bool {
+	if m != nil && m.StartInclusive != nil {
+		return *m.StartInclusive
+	}
+	return false
+}
+
+func (m *CompiledQuery_PrimaryScan) GetEndKey() string {
+	if m != nil && m.EndKey != nil {
+		return *m.EndKey
+	}
+	return ""
+}
+
+func (m *CompiledQuery_PrimaryScan) GetEndInclusive() bool {
+	if m != nil && m.EndInclusive != nil {
+		return *m.EndInclusive
+	}
+	return false
+}
+
+func (m *CompiledQuery_PrimaryScan) GetStartPostfixValue() []string {
+	if m != nil {
+		return m.StartPostfixValue
+	}
+	return nil
+}
+
+func (m *CompiledQuery_PrimaryScan) GetEndPostfixValue() []string {
+	if m != nil {
+		return m.EndPostfixValue
+	}
+	return nil
+}
+
+func (m *CompiledQuery_PrimaryScan) GetEndUnappliedLogTimestampUs() int64 {
+	if m != nil && m.EndUnappliedLogTimestampUs != nil {
+		return *m.EndUnappliedLogTimestampUs
+	}
+	return 0
+}
+
+type CompiledQuery_MergeJoinScan struct {
+	IndexName        *string  `protobuf:"bytes,8,req,name=index_name" json:"index_name,omitempty"`
+	PrefixValue      []string `protobuf:"bytes,9,rep,name=prefix_value" json:"prefix_value,omitempty"`
+	ValuePrefix      *bool    `protobuf:"varint,20,opt,name=value_prefix,def=0" json:"value_prefix,omitempty"`
+	XXX_unrecognized []byte   `json:"-"`
+}
+
+func (m *CompiledQuery_MergeJoinScan) Reset()         { *m = CompiledQuery_MergeJoinScan{} }
+func (m *CompiledQuery_MergeJoinScan) String() string { return proto.CompactTextString(m) }
+func (*CompiledQuery_MergeJoinScan) ProtoMessage()    {}
+
+const Default_CompiledQuery_MergeJoinScan_ValuePrefix bool = false
+
+func (m *CompiledQuery_MergeJoinScan) GetIndexName() string {
+	if m != nil && m.IndexName != nil {
+		return *m.IndexName
+	}
+	return ""
+}
+
+func (m *CompiledQuery_MergeJoinScan) GetPrefixValue() []string {
+	if m != nil {
+		return m.PrefixValue
+	}
+	return nil
+}
+
+func (m *CompiledQuery_MergeJoinScan) GetValuePrefix() bool {
+	if m != nil && m.ValuePrefix != nil {
+		return *m.ValuePrefix
+	}
+	return Default_CompiledQuery_MergeJoinScan_ValuePrefix
+}
+
+type CompiledQuery_EntityFilter struct {
+	Distinct         *bool      `protobuf:"varint,14,opt,name=distinct,def=0" json:"distinct,omitempty"`
+	Kind             *string    `protobuf:"bytes,17,opt,name=kind" json:"kind,omitempty"`
+	Ancestor         *Reference `protobuf:"bytes,18,opt,name=ancestor" json:"ancestor,omitempty"`
+	XXX_unrecognized []byte     `json:"-"`
+}
+
+func (m *CompiledQuery_EntityFilter) Reset()         { *m = CompiledQuery_EntityFilter{} }
+func (m *CompiledQuery_EntityFilter) String() string { return proto.CompactTextString(m) }
+func (*CompiledQuery_EntityFilter) ProtoMessage()    {}
+
+const Default_CompiledQuery_EntityFilter_Distinct bool = false
+
+func (m *CompiledQuery_EntityFilter) GetDistinct() bool {
+	if m != nil && m.Distinct != nil {
+		return *m.Distinct
+	}
+	return Default_CompiledQuery_EntityFilter_Distinct
+}
+
+func (m *CompiledQuery_EntityFilter) GetKind() string {
+	if m != nil && m.Kind != nil {
+		return *m.Kind
+	}
+	return ""
+}
+
+func (m *CompiledQuery_EntityFilter) GetAncestor() *Reference {
+	if m != nil {
+		return m.Ancestor
+	}
+	return nil
+}
+
+type CompiledCursor struct {
+	Position         *CompiledCursor_Position `protobuf:"group,2,opt,name=Position" json:"position,omitempty"`
+	XXX_unrecognized []byte                   `json:"-"`
+}
+
+func (m *CompiledCursor) Reset()         { *m = CompiledCursor{} }
+func (m *CompiledCursor) String() string { return proto.CompactTextString(m) }
+func (*CompiledCursor) ProtoMessage()    {}
+
+func (m *CompiledCursor) GetPosition() *CompiledCursor_Position {
+	if m != nil {
+		return m.Position
+	}
+	return nil
+}
+
+type CompiledCursor_Position struct {
+	StartKey         *string                               `protobuf:"bytes,27,opt,name=start_key" json:"start_key,omitempty"`
+	Indexvalue       []*CompiledCursor_Position_IndexValue `protobuf:"group,29,rep,name=IndexValue" json:"indexvalue,omitempty"`
+	Key              *Reference                            `protobuf:"bytes,32,opt,name=key" json:"key,omitempty"`
+	StartInclusive   *bool                                 `protobuf:"varint,28,opt,name=start_inclusive,def=1" json:"start_inclusive,omitempty"`
+	XXX_unrecognized []byte                                `json:"-"`
+}
+
+func (m *CompiledCursor_Position) Reset()         { *m = CompiledCursor_Position{} }
+func (m *CompiledCursor_Position) String() string { return proto.CompactTextString(m) }
+func (*CompiledCursor_Position) ProtoMessage()    {}
+
+const Default_CompiledCursor_Position_StartInclusive bool = true
+
+func (m *CompiledCursor_Position) GetStartKey() string {
+	if m != nil && m.StartKey != nil {
+		return *m.StartKey
+	}
+	return ""
+}
+
+func (m *CompiledCursor_Position) GetIndexvalue() []*CompiledCursor_Position_IndexValue {
+	if m != nil {
+		return m.Indexvalue
+	}
+	return nil
+}
+
+func (m *CompiledCursor_Position) GetKey() *Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *CompiledCursor_Position) GetStartInclusive() bool {
+	if m != nil && m.StartInclusive != nil {
+		return *m.StartInclusive
+	}
+	return Default_CompiledCursor_Position_StartInclusive
+}
+
+type CompiledCursor_Position_IndexValue struct {
+	Property         *string        `protobuf:"bytes,30,opt,name=property" json:"property,omitempty"`
+	Value            *PropertyValue `protobuf:"bytes,31,req,name=value" json:"value,omitempty"`
+	XXX_unrecognized []byte         `json:"-"`
+}
+
+func (m *CompiledCursor_Position_IndexValue) Reset()         { *m = CompiledCursor_Position_IndexValue{} }
+func (m *CompiledCursor_Position_IndexValue) String() string { return proto.CompactTextString(m) }
+func (*CompiledCursor_Position_IndexValue) ProtoMessage()    {}
+
+func (m *CompiledCursor_Position_IndexValue) GetProperty() string {
+	if m != nil && m.Property != nil {
+		return *m.Property
+	}
+	return ""
+}
+
+func (m *CompiledCursor_Position_IndexValue) GetValue() *PropertyValue {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+type Cursor struct {
+	Cursor           *uint64 `protobuf:"fixed64,1,req,name=cursor" json:"cursor,omitempty"`
+	App              *string `protobuf:"bytes,2,opt,name=app" json:"app,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *Cursor) Reset()         { *m = Cursor{} }
+func (m *Cursor) String() string { return proto.CompactTextString(m) }
+func (*Cursor) ProtoMessage()    {}
+
+func (m *Cursor) GetCursor() uint64 {
+	if m != nil && m.Cursor != nil {
+		return *m.Cursor
+	}
+	return 0
+}
+
+func (m *Cursor) GetApp() string {
+	if m != nil && m.App != nil {
+		return *m.App
+	}
+	return ""
+}
+
+type Error struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *Error) Reset()         { *m = Error{} }
+func (m *Error) String() string { return proto.CompactTextString(m) }
+func (*Error) ProtoMessage()    {}
+
+type Cost struct {
+	IndexWrites             *int32           `protobuf:"varint,1,opt,name=index_writes" json:"index_writes,omitempty"`
+	IndexWriteBytes         *int32           `protobuf:"varint,2,opt,name=index_write_bytes" json:"index_write_bytes,omitempty"`
+	EntityWrites            *int32           `protobuf:"varint,3,opt,name=entity_writes" json:"entity_writes,omitempty"`
+	EntityWriteBytes        *int32           `protobuf:"varint,4,opt,name=entity_write_bytes" json:"entity_write_bytes,omitempty"`
+	Commitcost              *Cost_CommitCost `protobuf:"group,5,opt,name=CommitCost" json:"commitcost,omitempty"`
+	ApproximateStorageDelta *int32           `protobuf:"varint,8,opt,name=approximate_storage_delta" json:"approximate_storage_delta,omitempty"`
+	IdSequenceUpdates       *int32           `protobuf:"varint,9,opt,name=id_sequence_updates" json:"id_sequence_updates,omitempty"`
+	XXX_unrecognized        []byte           `json:"-"`
+}
+
+func (m *Cost) Reset()         { *m = Cost{} }
+func (m *Cost) String() string { return proto.CompactTextString(m) }
+func (*Cost) ProtoMessage()    {}
+
+func (m *Cost) GetIndexWrites() int32 {
+	if m != nil && m.IndexWrites != nil {
+		return *m.IndexWrites
+	}
+	return 0
+}
+
+func (m *Cost) GetIndexWriteBytes() int32 {
+	if m != nil && m.IndexWriteBytes != nil {
+		return *m.IndexWriteBytes
+	}
+	return 0
+}
+
+func (m *Cost) GetEntityWrites() int32 {
+	if m != nil && m.EntityWrites != nil {
+		return *m.EntityWrites
+	}
+	return 0
+}
+
+func (m *Cost) GetEntityWriteBytes() int32 {
+	if m != nil && m.EntityWriteBytes != nil {
+		return *m.EntityWriteBytes
+	}
+	return 0
+}
+
+func (m *Cost) GetCommitcost() *Cost_CommitCost {
+	if m != nil {
+		return m.Commitcost
+	}
+	return nil
+}
+
+func (m *Cost) GetApproximateStorageDelta() int32 {
+	if m != nil && m.ApproximateStorageDelta != nil {
+		return *m.ApproximateStorageDelta
+	}
+	return 0
+}
+
+func (m *Cost) GetIdSequenceUpdates() int32 {
+	if m != nil && m.IdSequenceUpdates != nil {
+		return *m.IdSequenceUpdates
+	}
+	return 0
+}
+
+type Cost_CommitCost struct {
+	RequestedEntityPuts    *int32 `protobuf:"varint,6,opt,name=requested_entity_puts" json:"requested_entity_puts,omitempty"`
+	RequestedEntityDeletes *int32 `protobuf:"varint,7,opt,name=requested_entity_deletes" json:"requested_entity_deletes,omitempty"`
+	XXX_unrecognized       []byte `json:"-"`
+}
+
+func (m *Cost_CommitCost) Reset()         { *m = Cost_CommitCost{} }
+func (m *Cost_CommitCost) String() string { return proto.CompactTextString(m) }
+func (*Cost_CommitCost) ProtoMessage()    {}
+
+func (m *Cost_CommitCost) GetRequestedEntityPuts() int32 {
+	if m != nil && m.RequestedEntityPuts != nil {
+		return *m.RequestedEntityPuts
+	}
+	return 0
+}
+
+func (m *Cost_CommitCost) GetRequestedEntityDeletes() int32 {
+	if m != nil && m.RequestedEntityDeletes != nil {
+		return *m.RequestedEntityDeletes
+	}
+	return 0
+}
+
+type GetRequest struct {
+	Header           *InternalHeader `protobuf:"bytes,6,opt,name=header" json:"header,omitempty"`
+	Key              []*Reference    `protobuf:"bytes,1,rep,name=key" json:"key,omitempty"`
+	Transaction      *Transaction    `protobuf:"bytes,2,opt,name=transaction" json:"transaction,omitempty"`
+	FailoverMs       *int64          `protobuf:"varint,3,opt,name=failover_ms" json:"failover_ms,omitempty"`
+	Strong           *bool           `protobuf:"varint,4,opt,name=strong" json:"strong,omitempty"`
+	AllowDeferred    *bool           `protobuf:"varint,5,opt,name=allow_deferred,def=0" json:"allow_deferred,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *GetRequest) Reset()         { *m = GetRequest{} }
+func (m *GetRequest) String() string { return proto.CompactTextString(m) }
+func (*GetRequest) ProtoMessage()    {}
+
+const Default_GetRequest_AllowDeferred bool = false
+
+func (m *GetRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *GetRequest) GetKey() []*Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *GetRequest) GetTransaction() *Transaction {
+	if m != nil {
+		return m.Transaction
+	}
+	return nil
+}
+
+func (m *GetRequest) GetFailoverMs() int64 {
+	if m != nil && m.FailoverMs != nil {
+		return *m.FailoverMs
+	}
+	return 0
+}
+
+func (m *GetRequest) GetStrong() bool {
+	if m != nil && m.Strong != nil {
+		return *m.Strong
+	}
+	return false
+}
+
+func (m *GetRequest) GetAllowDeferred() bool {
+	if m != nil && m.AllowDeferred != nil {
+		return *m.AllowDeferred
+	}
+	return Default_GetRequest_AllowDeferred
+}
+
+type GetResponse struct {
+	Entity           []*GetResponse_Entity `protobuf:"group,1,rep,name=Entity" json:"entity,omitempty"`
+	Deferred         []*Reference          `protobuf:"bytes,5,rep,name=deferred" json:"deferred,omitempty"`
+	InOrder          *bool                 `protobuf:"varint,6,opt,name=in_order,def=1" json:"in_order,omitempty"`
+	XXX_unrecognized []byte                `json:"-"`
+}
+
+func (m *GetResponse) Reset()         { *m = GetResponse{} }
+func (m *GetResponse) String() string { return proto.CompactTextString(m) }
+func (*GetResponse) ProtoMessage()    {}
+
+const Default_GetResponse_InOrder bool = true
+
+func (m *GetResponse) GetEntity() []*GetResponse_Entity {
+	if m != nil {
+		return m.Entity
+	}
+	return nil
+}
+
+func (m *GetResponse) GetDeferred() []*Reference {
+	if m != nil {
+		return m.Deferred
+	}
+	return nil
+}
+
+func (m *GetResponse) GetInOrder() bool {
+	if m != nil && m.InOrder != nil {
+		return *m.InOrder
+	}
+	return Default_GetResponse_InOrder
+}
+
+type GetResponse_Entity struct {
+	Entity           *EntityProto `protobuf:"bytes,2,opt,name=entity" json:"entity,omitempty"`
+	Key              *Reference   `protobuf:"bytes,4,opt,name=key" json:"key,omitempty"`
+	Version          *int64       `protobuf:"varint,3,opt,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte       `json:"-"`
+}
+
+func (m *GetResponse_Entity) Reset()         { *m = GetResponse_Entity{} }
+func (m *GetResponse_Entity) String() string { return proto.CompactTextString(m) }
+func (*GetResponse_Entity) ProtoMessage()    {}
+
+func (m *GetResponse_Entity) GetEntity() *EntityProto {
+	if m != nil {
+		return m.Entity
+	}
+	return nil
+}
+
+func (m *GetResponse_Entity) GetKey() *Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *GetResponse_Entity) GetVersion() int64 {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return 0
+}
+
+type PutRequest struct {
+	Header           *InternalHeader          `protobuf:"bytes,11,opt,name=header" json:"header,omitempty"`
+	Entity           []*EntityProto           `protobuf:"bytes,1,rep,name=entity" json:"entity,omitempty"`
+	Transaction      *Transaction             `protobuf:"bytes,2,opt,name=transaction" json:"transaction,omitempty"`
+	CompositeIndex   []*CompositeIndex        `protobuf:"bytes,3,rep,name=composite_index" json:"composite_index,omitempty"`
+	Trusted          *bool                    `protobuf:"varint,4,opt,name=trusted,def=0" json:"trusted,omitempty"`
+	Force            *bool                    `protobuf:"varint,7,opt,name=force,def=0" json:"force,omitempty"`
+	MarkChanges      *bool                    `protobuf:"varint,8,opt,name=mark_changes,def=0" json:"mark_changes,omitempty"`
+	Snapshot         []*Snapshot              `protobuf:"bytes,9,rep,name=snapshot" json:"snapshot,omitempty"`
+	AutoIdPolicy     *PutRequest_AutoIdPolicy `protobuf:"varint,10,opt,name=auto_id_policy,enum=appengine.PutRequest_AutoIdPolicy,def=0" json:"auto_id_policy,omitempty"`
+	XXX_unrecognized []byte                   `json:"-"`
+}
+
+func (m *PutRequest) Reset()         { *m = PutRequest{} }
+func (m *PutRequest) String() string { return proto.CompactTextString(m) }
+func (*PutRequest) ProtoMessage()    {}
+
+const Default_PutRequest_Trusted bool = false
+const Default_PutRequest_Force bool = false
+const Default_PutRequest_MarkChanges bool = false
+const Default_PutRequest_AutoIdPolicy PutRequest_AutoIdPolicy = PutRequest_CURRENT
+
+func (m *PutRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *PutRequest) GetEntity() []*EntityProto {
+	if m != nil {
+		return m.Entity
+	}
+	return nil
+}
+
+func (m *PutRequest) GetTransaction() *Transaction {
+	if m != nil {
+		return m.Transaction
+	}
+	return nil
+}
+
+func (m *PutRequest) GetCompositeIndex() []*CompositeIndex {
+	if m != nil {
+		return m.CompositeIndex
+	}
+	return nil
+}
+
+func (m *PutRequest) GetTrusted() bool {
+	if m != nil && m.Trusted != nil {
+		return *m.Trusted
+	}
+	return Default_PutRequest_Trusted
+}
+
+func (m *PutRequest) GetForce() bool {
+	if m != nil && m.Force != nil {
+		return *m.Force
+	}
+	return Default_PutRequest_Force
+}
+
+func (m *PutRequest) GetMarkChanges() bool {
+	if m != nil && m.MarkChanges != nil {
+		return *m.MarkChanges
+	}
+	return Default_PutRequest_MarkChanges
+}
+
+func (m *PutRequest) GetSnapshot() []*Snapshot {
+	if m != nil {
+		return m.Snapshot
+	}
+	return nil
+}
+
+func (m *PutRequest) GetAutoIdPolicy() PutRequest_AutoIdPolicy {
+	if m != nil && m.AutoIdPolicy != nil {
+		return *m.AutoIdPolicy
+	}
+	return Default_PutRequest_AutoIdPolicy
+}
+
+type PutResponse struct {
+	Key              []*Reference `protobuf:"bytes,1,rep,name=key" json:"key,omitempty"`
+	Cost             *Cost        `protobuf:"bytes,2,opt,name=cost" json:"cost,omitempty"`
+	Version          []int64      `protobuf:"varint,3,rep,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte       `json:"-"`
+}
+
+func (m *PutResponse) Reset()         { *m = PutResponse{} }
+func (m *PutResponse) String() string { return proto.CompactTextString(m) }
+func (*PutResponse) ProtoMessage()    {}
+
+func (m *PutResponse) GetKey() []*Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *PutResponse) GetCost() *Cost {
+	if m != nil {
+		return m.Cost
+	}
+	return nil
+}
+
+func (m *PutResponse) GetVersion() []int64 {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+type TouchRequest struct {
+	Header           *InternalHeader   `protobuf:"bytes,10,opt,name=header" json:"header,omitempty"`
+	Key              []*Reference      `protobuf:"bytes,1,rep,name=key" json:"key,omitempty"`
+	CompositeIndex   []*CompositeIndex `protobuf:"bytes,2,rep,name=composite_index" json:"composite_index,omitempty"`
+	Force            *bool             `protobuf:"varint,3,opt,name=force,def=0" json:"force,omitempty"`
+	Snapshot         []*Snapshot       `protobuf:"bytes,9,rep,name=snapshot" json:"snapshot,omitempty"`
+	XXX_unrecognized []byte            `json:"-"`
+}
+
+func (m *TouchRequest) Reset()         { *m = TouchRequest{} }
+func (m *TouchRequest) String() string { return proto.CompactTextString(m) }
+func (*TouchRequest) ProtoMessage()    {}
+
+const Default_TouchRequest_Force bool = false
+
+func (m *TouchRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *TouchRequest) GetKey() []*Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *TouchRequest) GetCompositeIndex() []*CompositeIndex {
+	if m != nil {
+		return m.CompositeIndex
+	}
+	return nil
+}
+
+func (m *TouchRequest) GetForce() bool {
+	if m != nil && m.Force != nil {
+		return *m.Force
+	}
+	return Default_TouchRequest_Force
+}
+
+func (m *TouchRequest) GetSnapshot() []*Snapshot {
+	if m != nil {
+		return m.Snapshot
+	}
+	return nil
+}
+
+type TouchResponse struct {
+	Cost             *Cost  `protobuf:"bytes,1,opt,name=cost" json:"cost,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *TouchResponse) Reset()         { *m = TouchResponse{} }
+func (m *TouchResponse) String() string { return proto.CompactTextString(m) }
+func (*TouchResponse) ProtoMessage()    {}
+
+func (m *TouchResponse) GetCost() *Cost {
+	if m != nil {
+		return m.Cost
+	}
+	return nil
+}
+
+type DeleteRequest struct {
+	Header           *InternalHeader `protobuf:"bytes,10,opt,name=header" json:"header,omitempty"`
+	Key              []*Reference    `protobuf:"bytes,6,rep,name=key" json:"key,omitempty"`
+	Transaction      *Transaction    `protobuf:"bytes,5,opt,name=transaction" json:"transaction,omitempty"`
+	Trusted          *bool           `protobuf:"varint,4,opt,name=trusted,def=0" json:"trusted,omitempty"`
+	Force            *bool           `protobuf:"varint,7,opt,name=force,def=0" json:"force,omitempty"`
+	MarkChanges      *bool           `protobuf:"varint,8,opt,name=mark_changes,def=0" json:"mark_changes,omitempty"`
+	Snapshot         []*Snapshot     `protobuf:"bytes,9,rep,name=snapshot" json:"snapshot,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *DeleteRequest) Reset()         { *m = DeleteRequest{} }
+func (m *DeleteRequest) String() string { return proto.CompactTextString(m) }
+func (*DeleteRequest) ProtoMessage()    {}
+
+const Default_DeleteRequest_Trusted bool = false
+const Default_DeleteRequest_Force bool = false
+const Default_DeleteRequest_MarkChanges bool = false
+
+func (m *DeleteRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *DeleteRequest) GetKey() []*Reference {
+	if m != nil {
+		return m.Key
+	}
+	return nil
+}
+
+func (m *DeleteRequest) GetTransaction() *Transaction {
+	if m != nil {
+		return m.Transaction
+	}
+	return nil
+}
+
+func (m *DeleteRequest) GetTrusted() bool {
+	if m != nil && m.Trusted != nil {
+		return *m.Trusted
+	}
+	return Default_DeleteRequest_Trusted
+}
+
+func (m *DeleteRequest) GetForce() bool {
+	if m != nil && m.Force != nil {
+		return *m.Force
+	}
+	return Default_DeleteRequest_Force
+}
+
+func (m *DeleteRequest) GetMarkChanges() bool {
+	if m != nil && m.MarkChanges != nil {
+		return *m.MarkChanges
+	}
+	return Default_DeleteRequest_MarkChanges
+}
+
+func (m *DeleteRequest) GetSnapshot() []*Snapshot {
+	if m != nil {
+		return m.Snapshot
+	}
+	return nil
+}
+
+type DeleteResponse struct {
+	Cost             *Cost   `protobuf:"bytes,1,opt,name=cost" json:"cost,omitempty"`
+	Version          []int64 `protobuf:"varint,3,rep,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *DeleteResponse) Reset()         { *m = DeleteResponse{} }
+func (m *DeleteResponse) String() string { return proto.CompactTextString(m) }
+func (*DeleteResponse) ProtoMessage()    {}
+
+func (m *DeleteResponse) GetCost() *Cost {
+	if m != nil {
+		return m.Cost
+	}
+	return nil
+}
+
+func (m *DeleteResponse) GetVersion() []int64 {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+type NextRequest struct {
+	Header           *InternalHeader `protobuf:"bytes,5,opt,name=header" json:"header,omitempty"`
+	Cursor           *Cursor         `protobuf:"bytes,1,req,name=cursor" json:"cursor,omitempty"`
+	Count            *int32          `protobuf:"varint,2,opt,name=count" json:"count,omitempty"`
+	Offset           *int32          `protobuf:"varint,4,opt,name=offset,def=0" json:"offset,omitempty"`
+	Compile          *bool           `protobuf:"varint,3,opt,name=compile,def=0" json:"compile,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *NextRequest) Reset()         { *m = NextRequest{} }
+func (m *NextRequest) String() string { return proto.CompactTextString(m) }
+func (*NextRequest) ProtoMessage()    {}
+
+const Default_NextRequest_Offset int32 = 0
+const Default_NextRequest_Compile bool = false
+
+func (m *NextRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *NextRequest) GetCursor() *Cursor {
+	if m != nil {
+		return m.Cursor
+	}
+	return nil
+}
+
+func (m *NextRequest) GetCount() int32 {
+	if m != nil && m.Count != nil {
+		return *m.Count
+	}
+	return 0
+}
+
+func (m *NextRequest) GetOffset() int32 {
+	if m != nil && m.Offset != nil {
+		return *m.Offset
+	}
+	return Default_NextRequest_Offset
+}
+
+func (m *NextRequest) GetCompile() bool {
+	if m != nil && m.Compile != nil {
+		return *m.Compile
+	}
+	return Default_NextRequest_Compile
+}
+
+type QueryResult struct {
+	Cursor           *Cursor           `protobuf:"bytes,1,opt,name=cursor" json:"cursor,omitempty"`
+	Result           []*EntityProto    `protobuf:"bytes,2,rep,name=result" json:"result,omitempty"`
+	SkippedResults   *int32            `protobuf:"varint,7,opt,name=skipped_results" json:"skipped_results,omitempty"`
+	MoreResults      *bool             `protobuf:"varint,3,req,name=more_results" json:"more_results,omitempty"`
+	KeysOnly         *bool             `protobuf:"varint,4,opt,name=keys_only" json:"keys_only,omitempty"`
+	IndexOnly        *bool             `protobuf:"varint,9,opt,name=index_only" json:"index_only,omitempty"`
+	SmallOps         *bool             `protobuf:"varint,10,opt,name=small_ops" json:"small_ops,omitempty"`
+	CompiledQuery    *CompiledQuery    `protobuf:"bytes,5,opt,name=compiled_query" json:"compiled_query,omitempty"`
+	CompiledCursor   *CompiledCursor   `protobuf:"bytes,6,opt,name=compiled_cursor" json:"compiled_cursor,omitempty"`
+	Index            []*CompositeIndex `protobuf:"bytes,8,rep,name=index" json:"index,omitempty"`
+	Version          []int64           `protobuf:"varint,11,rep,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte            `json:"-"`
+}
+
+func (m *QueryResult) Reset()         { *m = QueryResult{} }
+func (m *QueryResult) String() string { return proto.CompactTextString(m) }
+func (*QueryResult) ProtoMessage()    {}
+
+func (m *QueryResult) GetCursor() *Cursor {
+	if m != nil {
+		return m.Cursor
+	}
+	return nil
+}
+
+func (m *QueryResult) GetResult() []*EntityProto {
+	if m != nil {
+		return m.Result
+	}
+	return nil
+}
+
+func (m *QueryResult) GetSkippedResults() int32 {
+	if m != nil && m.SkippedResults != nil {
+		return *m.SkippedResults
+	}
+	return 0
+}
+
+func (m *QueryResult) GetMoreResults() bool {
+	if m != nil && m.MoreResults != nil {
+		return *m.MoreResults
+	}
+	return false
+}
+
+func (m *QueryResult) GetKeysOnly() bool {
+	if m != nil && m.KeysOnly != nil {
+		return *m.KeysOnly
+	}
+	return false
+}
+
+func (m *QueryResult) GetIndexOnly() bool {
+	if m != nil && m.IndexOnly != nil {
+		return *m.IndexOnly
+	}
+	return false
+}
+
+func (m *QueryResult) GetSmallOps() bool {
+	if m != nil && m.SmallOps != nil {
+		return *m.SmallOps
+	}
+	return false
+}
+
+func (m *QueryResult) GetCompiledQuery() *CompiledQuery {
+	if m != nil {
+		return m.CompiledQuery
+	}
+	return nil
+}
+
+func (m *QueryResult) GetCompiledCursor() *CompiledCursor {
+	if m != nil {
+		return m.CompiledCursor
+	}
+	return nil
+}
+
+func (m *QueryResult) GetIndex() []*CompositeIndex {
+	if m != nil {
+		return m.Index
+	}
+	return nil
+}
+
+func (m *QueryResult) GetVersion() []int64 {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+type AllocateIdsRequest struct {
+	Header           *InternalHeader `protobuf:"bytes,4,opt,name=header" json:"header,omitempty"`
+	ModelKey         *Reference      `protobuf:"bytes,1,opt,name=model_key" json:"model_key,omitempty"`
+	Size             *int64          `protobuf:"varint,2,opt,name=size" json:"size,omitempty"`
+	Max              *int64          `protobuf:"varint,3,opt,name=max" json:"max,omitempty"`
+	Reserve          []*Reference    `protobuf:"bytes,5,rep,name=reserve" json:"reserve,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *AllocateIdsRequest) Reset()         { *m = AllocateIdsRequest{} }
+func (m *AllocateIdsRequest) String() string { return proto.CompactTextString(m) }
+func (*AllocateIdsRequest) ProtoMessage()    {}
+
+func (m *AllocateIdsRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *AllocateIdsRequest) GetModelKey() *Reference {
+	if m != nil {
+		return m.ModelKey
+	}
+	return nil
+}
+
+func (m *AllocateIdsRequest) GetSize() int64 {
+	if m != nil && m.Size != nil {
+		return *m.Size
+	}
+	return 0
+}
+
+func (m *AllocateIdsRequest) GetMax() int64 {
+	if m != nil && m.Max != nil {
+		return *m.Max
+	}
+	return 0
+}
+
+func (m *AllocateIdsRequest) GetReserve() []*Reference {
+	if m != nil {
+		return m.Reserve
+	}
+	return nil
+}
+
+type AllocateIdsResponse struct {
+	Start            *int64 `protobuf:"varint,1,req,name=start" json:"start,omitempty"`
+	End              *int64 `protobuf:"varint,2,req,name=end" json:"end,omitempty"`
+	Cost             *Cost  `protobuf:"bytes,3,opt,name=cost" json:"cost,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *AllocateIdsResponse) Reset()         { *m = AllocateIdsResponse{} }
+func (m *AllocateIdsResponse) String() string { return proto.CompactTextString(m) }
+func (*AllocateIdsResponse) ProtoMessage()    {}
+
+func (m *AllocateIdsResponse) GetStart() int64 {
+	if m != nil && m.Start != nil {
+		return *m.Start
+	}
+	return 0
+}
+
+func (m *AllocateIdsResponse) GetEnd() int64 {
+	if m != nil && m.End != nil {
+		return *m.End
+	}
+	return 0
+}
+
+func (m *AllocateIdsResponse) GetCost() *Cost {
+	if m != nil {
+		return m.Cost
+	}
+	return nil
+}
+
+type CompositeIndices struct {
+	Index            []*CompositeIndex `protobuf:"bytes,1,rep,name=index" json:"index,omitempty"`
+	XXX_unrecognized []byte            `json:"-"`
+}
+
+func (m *CompositeIndices) Reset()         { *m = CompositeIndices{} }
+func (m *CompositeIndices) String() string { return proto.CompactTextString(m) }
+func (*CompositeIndices) ProtoMessage()    {}
+
+func (m *CompositeIndices) GetIndex() []*CompositeIndex {
+	if m != nil {
+		return m.Index
+	}
+	return nil
+}
+
+type AddActionsRequest struct {
+	Header           *InternalHeader `protobuf:"bytes,3,opt,name=header" json:"header,omitempty"`
+	Transaction      *Transaction    `protobuf:"bytes,1,req,name=transaction" json:"transaction,omitempty"`
+	Action           []*Action       `protobuf:"bytes,2,rep,name=action" json:"action,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *AddActionsRequest) Reset()         { *m = AddActionsRequest{} }
+func (m *AddActionsRequest) String() string { return proto.CompactTextString(m) }
+func (*AddActionsRequest) ProtoMessage()    {}
+
+func (m *AddActionsRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *AddActionsRequest) GetTransaction() *Transaction {
+	if m != nil {
+		return m.Transaction
+	}
+	return nil
+}
+
+func (m *AddActionsRequest) GetAction() []*Action {
+	if m != nil {
+		return m.Action
+	}
+	return nil
+}
+
+type AddActionsResponse struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *AddActionsResponse) Reset()         { *m = AddActionsResponse{} }
+func (m *AddActionsResponse) String() string { return proto.CompactTextString(m) }
+func (*AddActionsResponse) ProtoMessage()    {}
+
+type BeginTransactionRequest struct {
+	Header           *InternalHeader `protobuf:"bytes,3,opt,name=header" json:"header,omitempty"`
+	App              *string         `protobuf:"bytes,1,req,name=app" json:"app,omitempty"`
+	AllowMultipleEg  *bool           `protobuf:"varint,2,opt,name=allow_multiple_eg,def=0" json:"allow_multiple_eg,omitempty"`
+	XXX_unrecognized []byte          `json:"-"`
+}
+
+func (m *BeginTransactionRequest) Reset()         { *m = BeginTransactionRequest{} }
+func (m *BeginTransactionRequest) String() string { return proto.CompactTextString(m) }
+func (*BeginTransactionRequest) ProtoMessage()    {}
+
+const Default_BeginTransactionRequest_AllowMultipleEg bool = false
+
+func (m *BeginTransactionRequest) GetHeader() *InternalHeader {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *BeginTransactionRequest) GetApp() string {
+	if m != nil && m.App != nil {
+		return *m.App
+	}
+	return ""
+}
+
+func (m *BeginTransactionRequest) GetAllowMultipleEg() bool {
+	if m != nil && m.AllowMultipleEg != nil {
+		return *m.AllowMultipleEg
+	}
+	return Default_BeginTransactionRequest_AllowMultipleEg
+}
+
+type CommitResponse struct {
+	Cost             *Cost                     `protobuf:"bytes,1,opt,name=cost" json:"cost,omitempty"`
+	Version          []*CommitResponse_Version `protobuf:"group,3,rep,name=Version" json:"version,omitempty"`
+	XXX_unrecognized []byte                    `json:"-"`
+}
+
+func (m *CommitResponse) Reset()         { *m = CommitResponse{} }
+func (m *CommitResponse) String() string { return proto.CompactTextString(m) }
+func (*CommitResponse) ProtoMessage()    {}
+
+func (m *CommitResponse) GetCost() *Cost {
+	if m != nil {
+		return m.Cost
+	}
+	return nil
+}
+
+func (m *CommitResponse) GetVersion() []*CommitResponse_Version {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+type CommitResponse_Version struct {
+	RootEntityKey    *Reference `protobuf:"bytes,4,req,name=root_entity_key" json:"root_entity_key,omitempty"`
+	Version          *int64     `protobuf:"varint,5,req,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte     `json:"-"`
+}
+
+func (m *CommitResponse_Version) Reset()         { *m = CommitResponse_Version{} }
+func (m *CommitResponse_Version) String() string { return proto.CompactTextString(m) }
+func (*CommitResponse_Version) ProtoMessage()    {}
+
+func (m *CommitResponse_Version) GetRootEntityKey() *Reference {
+	if m != nil {
+		return m.RootEntityKey
+	}
+	return nil
+}
+
+func (m *CommitResponse_Version) GetVersion() int64 {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return 0
+}
+
+func init() {
+}
diff --git a/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto
new file mode 100755
index 0000000..e76f126
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto
@@ -0,0 +1,541 @@
+syntax = "proto2";
+option go_package = "datastore";
+
+package appengine;
+
+message Action{}
+
+message PropertyValue {
+  optional int64 int64Value = 1;
+  optional bool booleanValue = 2;
+  optional string stringValue = 3;
+  optional double doubleValue = 4;
+
+  optional group PointValue = 5 {
+    required double x = 6;
+    required double y = 7;
+  }
+
+  optional group UserValue = 8 {
+    required string email = 9;
+    required string auth_domain = 10;
+    optional string nickname = 11;
+    optional string federated_identity = 21;
+    optional string federated_provider = 22;
+  }
+
+  optional group ReferenceValue = 12 {
+    required string app = 13;
+    optional string name_space = 20;
+    repeated group PathElement = 14 {
+      required string type = 15;
+      optional int64 id = 16;
+      optional string name = 17;
+    }
+  }
+}
+
+message Property {
+  enum Meaning {
+    NO_MEANING = 0;
+    BLOB = 14;
+    TEXT = 15;
+    BYTESTRING = 16;
+
+    ATOM_CATEGORY = 1;
+    ATOM_LINK = 2;
+    ATOM_TITLE = 3;
+    ATOM_CONTENT = 4;
+    ATOM_SUMMARY = 5;
+    ATOM_AUTHOR = 6;
+
+    GD_WHEN = 7;
+    GD_EMAIL = 8;
+    GEORSS_POINT = 9;
+    GD_IM = 10;
+
+    GD_PHONENUMBER = 11;
+    GD_POSTALADDRESS = 12;
+
+    GD_RATING = 13;
+
+    BLOBKEY = 17;
+    ENTITY_PROTO = 19;
+
+    INDEX_VALUE = 18;
+  };
+
+  optional Meaning meaning = 1 [default = NO_MEANING];
+  optional string meaning_uri = 2;
+
+  required string name = 3;
+
+  required PropertyValue value = 5;
+
+  required bool multiple = 4;
+
+  optional bool searchable = 6 [default=false];
+
+  enum FtsTokenizationOption {
+    HTML = 1;
+    ATOM = 2;
+  }
+
+  optional FtsTokenizationOption fts_tokenization_option = 8;
+
+  optional string locale = 9 [default = "en"];
+}
+
+message Path {
+  repeated group Element = 1 {
+    required string type = 2;
+    optional int64 id = 3;
+    optional string name = 4;
+  }
+}
+
+message Reference {
+  required string app = 13;
+  optional string name_space = 20;
+  required Path path = 14;
+}
+
+message User {
+  required string email = 1;
+  required string auth_domain = 2;
+  optional string nickname = 3;
+  optional string federated_identity = 6;
+  optional string federated_provider = 7;
+}
+
+message EntityProto {
+  required Reference key = 13;
+  required Path entity_group = 16;
+  optional User owner = 17;
+
+  enum Kind {
+    GD_CONTACT = 1;
+    GD_EVENT = 2;
+    GD_MESSAGE = 3;
+  }
+  optional Kind kind = 4;
+  optional string kind_uri = 5;
+
+  repeated Property property = 14;
+  repeated Property raw_property = 15;
+
+  optional int32 rank = 18;
+}
+
+message CompositeProperty {
+  required int64 index_id = 1;
+  repeated string value = 2;
+}
+
+message Index {
+  required string entity_type = 1;
+  required bool ancestor = 5;
+  repeated group Property = 2 {
+    required string name = 3;
+    enum Direction {
+      ASCENDING = 1;
+      DESCENDING = 2;
+    }
+    optional Direction direction = 4 [default = ASCENDING];
+  }
+}
+
+message CompositeIndex {
+  required string app_id = 1;
+  required int64 id = 2;
+  required Index definition = 3;
+
+  enum State {
+    WRITE_ONLY = 1;
+    READ_WRITE = 2;
+    DELETED = 3;
+    ERROR = 4;
+  }
+  required State state = 4;
+
+  optional bool only_use_if_required = 6 [default = false];
+}
+
+message IndexPostfix {
+  message IndexValue {
+    required string property_name = 1;
+    required PropertyValue value = 2;
+  }
+
+  repeated IndexValue index_value = 1;
+
+  optional Reference key = 2;
+
+  optional bool before = 3 [default=true];
+}
+
+message IndexPosition {
+  optional string key = 1;
+
+  optional bool before = 2 [default=true];
+}
+
+message Snapshot {
+  enum Status {
+    INACTIVE = 0;
+    ACTIVE = 1;
+  }
+
+  required int64 ts = 1;
+}
+
+message InternalHeader {
+  optional string qos = 1;
+}
+
+message Transaction {
+  optional InternalHeader header = 4;
+  required fixed64 handle = 1;
+  required string app = 2;
+  optional bool mark_changes = 3 [default = false];
+}
+
+message Query {
+  optional InternalHeader header = 39;
+
+  required string app = 1;
+  optional string name_space = 29;
+
+  optional string kind = 3;
+  optional Reference ancestor = 17;
+
+  repeated group Filter = 4 {
+    enum Operator {
+      LESS_THAN = 1;
+      LESS_THAN_OR_EQUAL = 2;
+      GREATER_THAN = 3;
+      GREATER_THAN_OR_EQUAL = 4;
+      EQUAL = 5;
+      IN = 6;
+      EXISTS = 7;
+    }
+
+    required Operator op = 6;
+    repeated Property property = 14;
+  }
+
+  optional string search_query = 8;
+
+  repeated group Order = 9 {
+    enum Direction {
+      ASCENDING = 1;
+      DESCENDING = 2;
+    }
+
+    required string property = 10;
+    optional Direction direction = 11 [default = ASCENDING];
+  }
+
+  enum Hint {
+    ORDER_FIRST = 1;
+    ANCESTOR_FIRST = 2;
+    FILTER_FIRST = 3;
+  }
+  optional Hint hint = 18;
+
+  optional int32 count = 23;
+
+  optional int32 offset = 12 [default = 0];
+
+  optional int32 limit = 16;
+
+  optional CompiledCursor compiled_cursor = 30;
+  optional CompiledCursor end_compiled_cursor = 31;
+
+  repeated CompositeIndex composite_index = 19;
+
+  optional bool require_perfect_plan = 20 [default = false];
+
+  optional bool keys_only = 21 [default = false];
+
+  optional Transaction transaction = 22;
+
+  optional bool compile = 25 [default = false];
+
+  optional int64 failover_ms = 26;
+
+  optional bool strong = 32;
+
+  repeated string property_name = 33;
+
+  repeated string group_by_property_name = 34;
+
+  optional bool distinct = 24;
+
+  optional int64 min_safe_time_seconds = 35;
+
+  repeated string safe_replica_name = 36;
+
+  optional bool persist_offset = 37 [default=false];
+}
+
+message CompiledQuery {
+  required group PrimaryScan = 1 {
+    optional string index_name = 2;
+
+    optional string start_key = 3;
+    optional bool start_inclusive = 4;
+    optional string end_key = 5;
+    optional bool end_inclusive = 6;
+
+    repeated string start_postfix_value = 22;
+    repeated string end_postfix_value = 23;
+
+    optional int64 end_unapplied_log_timestamp_us = 19;
+  }
+
+  repeated group MergeJoinScan = 7 {
+    required string index_name = 8;
+
+    repeated string prefix_value = 9;
+
+    optional bool value_prefix = 20 [default=false];
+  }
+
+  optional Index index_def = 21;
+
+  optional int32 offset = 10 [default = 0];
+
+  optional int32 limit = 11;
+
+  required bool keys_only = 12;
+
+  repeated string property_name = 24;
+
+  optional int32 distinct_infix_size = 25;
+
+  optional group EntityFilter = 13 {
+    optional bool distinct = 14 [default=false];
+
+    optional string kind = 17;
+    optional Reference ancestor = 18;
+  }
+}
+
+message CompiledCursor {
+  optional group Position = 2 {
+    optional string start_key = 27;
+
+    repeated group IndexValue = 29 {
+      optional string property = 30;
+      required PropertyValue value = 31;
+    }
+
+    optional Reference key = 32;
+
+    optional bool start_inclusive = 28 [default=true];
+  }
+}
+
+message Cursor {
+  required fixed64 cursor = 1;
+
+  optional string app = 2;
+}
+
+message Error {
+  enum ErrorCode {
+    BAD_REQUEST = 1;
+    CONCURRENT_TRANSACTION = 2;
+    INTERNAL_ERROR = 3;
+    NEED_INDEX = 4;
+    TIMEOUT = 5;
+    PERMISSION_DENIED = 6;
+    BIGTABLE_ERROR = 7;
+    COMMITTED_BUT_STILL_APPLYING = 8;
+    CAPABILITY_DISABLED = 9;
+    TRY_ALTERNATE_BACKEND = 10;
+    SAFE_TIME_TOO_OLD = 11;
+  }
+}
+
+message Cost {
+  optional int32 index_writes = 1;
+  optional int32 index_write_bytes = 2;
+  optional int32 entity_writes = 3;
+  optional int32 entity_write_bytes = 4;
+  optional group CommitCost = 5 {
+    optional int32 requested_entity_puts = 6;
+    optional int32 requested_entity_deletes = 7;
+  };
+  optional int32 approximate_storage_delta = 8;
+  optional int32 id_sequence_updates = 9;
+}
+
+message GetRequest {
+  optional InternalHeader header = 6;
+
+  repeated Reference key = 1;
+  optional Transaction transaction = 2;
+
+  optional int64 failover_ms = 3;
+
+  optional bool strong = 4;
+
+  optional bool allow_deferred = 5 [default=false];
+}
+
+message GetResponse {
+  repeated group Entity = 1 {
+    optional EntityProto entity = 2;
+    optional Reference key = 4;
+
+    optional int64 version = 3;
+  }
+
+  repeated Reference deferred = 5;
+
+  optional bool in_order = 6 [default=true];
+}
+
+message PutRequest {
+  optional InternalHeader header = 11;
+
+  repeated EntityProto entity = 1;
+  optional Transaction transaction = 2;
+  repeated CompositeIndex composite_index = 3;
+
+  optional bool trusted = 4 [default = false];
+
+  optional bool force = 7 [default = false];
+
+  optional bool mark_changes = 8 [default = false];
+  repeated Snapshot snapshot = 9;
+
+  enum AutoIdPolicy {
+    CURRENT = 0;
+    SEQUENTIAL = 1;
+  }
+  optional AutoIdPolicy auto_id_policy = 10 [default = CURRENT];
+}
+
+message PutResponse {
+  repeated Reference key = 1;
+  optional Cost cost = 2;
+  repeated int64 version = 3;
+}
+
+message TouchRequest {
+  optional InternalHeader header = 10;
+
+  repeated Reference key = 1;
+  repeated CompositeIndex composite_index = 2;
+  optional bool force = 3 [default = false];
+  repeated Snapshot snapshot = 9;
+}
+
+message TouchResponse {
+  optional Cost cost = 1;
+}
+
+message DeleteRequest {
+  optional InternalHeader header = 10;
+
+  repeated Reference key = 6;
+  optional Transaction transaction = 5;
+
+  optional bool trusted = 4 [default = false];
+
+  optional bool force = 7 [default = false];
+
+  optional bool mark_changes = 8 [default = false];
+  repeated Snapshot snapshot = 9;
+}
+
+message DeleteResponse {
+  optional Cost cost = 1;
+  repeated int64 version = 3;
+}
+
+message NextRequest {
+  optional InternalHeader header = 5;
+
+  required Cursor cursor = 1;
+  optional int32 count = 2;
+
+  optional int32 offset = 4 [default = 0];
+
+  optional bool compile = 3 [default = false];
+}
+
+message QueryResult {
+  optional Cursor cursor = 1;
+
+  repeated EntityProto result = 2;
+
+  optional int32 skipped_results = 7;
+
+  required bool more_results = 3;
+
+  optional bool keys_only = 4;
+
+  optional bool index_only = 9;
+
+  optional bool small_ops = 10;
+
+  optional CompiledQuery compiled_query = 5;
+
+  optional CompiledCursor compiled_cursor = 6;
+
+  repeated CompositeIndex index = 8;
+
+  repeated int64 version = 11;
+}
+
+message AllocateIdsRequest {
+  optional InternalHeader header = 4;
+
+  optional Reference model_key = 1;
+
+  optional int64 size = 2;
+
+  optional int64 max = 3;
+
+  repeated Reference reserve = 5;
+}
+
+message AllocateIdsResponse {
+  required int64 start = 1;
+  required int64 end = 2;
+  optional Cost cost = 3;
+}
+
+message CompositeIndices {
+  repeated CompositeIndex index = 1;
+}
+
+message AddActionsRequest {
+  optional InternalHeader header = 3;
+
+  required Transaction transaction = 1;
+  repeated Action action = 2;
+}
+
+message AddActionsResponse {
+}
+
+message BeginTransactionRequest {
+  optional InternalHeader header = 3;
+
+  required string app = 1;
+  optional bool allow_multiple_eg = 2 [default = false];
+}
+
+message CommitResponse {
+  optional Cost cost = 1;
+
+  repeated group Version = 3 {
+    required Reference root_entity_key = 4;
+    required int64 version = 5;
+  }
+}
diff --git a/vendor/google.golang.org/appengine/internal/identity.go b/vendor/google.golang.org/appengine/internal/identity.go
new file mode 100644
index 0000000..d538701
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/identity.go
@@ -0,0 +1,14 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package internal
+
+import netcontext "golang.org/x/net/context"
+
+// These functions are implementations of the wrapper functions
+// in ../appengine/identity.go. See that file for commentary.
+
+func AppID(c netcontext.Context) string {
+	return appID(FullyQualifiedAppID(c))
+}
diff --git a/vendor/google.golang.org/appengine/internal/identity_classic.go b/vendor/google.golang.org/appengine/internal/identity_classic.go
new file mode 100644
index 0000000..e6b9227
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/identity_classic.go
@@ -0,0 +1,27 @@
+// Copyright 2015 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build appengine
+
+package internal
+
+import (
+	"appengine"
+
+	netcontext "golang.org/x/net/context"
+)
+
+func DefaultVersionHostname(ctx netcontext.Context) string {
+	return appengine.DefaultVersionHostname(fromContext(ctx))
+}
+
+func RequestID(ctx netcontext.Context) string  { return appengine.RequestID(fromContext(ctx)) }
+func Datacenter(_ netcontext.Context) string   { return appengine.Datacenter() }
+func ServerSoftware() string                   { return appengine.ServerSoftware() }
+func ModuleName(ctx netcontext.Context) string { return appengine.ModuleName(fromContext(ctx)) }
+func VersionID(ctx netcontext.Context) string  { return appengine.VersionID(fromContext(ctx)) }
+func InstanceID() string                       { return appengine.InstanceID() }
+func IsDevAppServer() bool                     { return appengine.IsDevAppServer() }
+
+func fullyQualifiedAppID(ctx netcontext.Context) string { return fromContext(ctx).FullyQualifiedAppID() }
diff --git a/vendor/google.golang.org/appengine/internal/identity_vm.go b/vendor/google.golang.org/appengine/internal/identity_vm.go
new file mode 100644
index 0000000..ebe68b7
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/identity_vm.go
@@ -0,0 +1,97 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build !appengine
+
+package internal
+
+import (
+	"net/http"
+	"os"
+
+	netcontext "golang.org/x/net/context"
+)
+
+// These functions are implementations of the wrapper functions
+// in ../appengine/identity.go. See that file for commentary.
+
+const (
+	hDefaultVersionHostname = "X-AppEngine-Default-Version-Hostname"
+	hRequestLogId           = "X-AppEngine-Request-Log-Id"
+	hDatacenter             = "X-AppEngine-Datacenter"
+)
+
+func ctxHeaders(ctx netcontext.Context) http.Header {
+	return fromContext(ctx).Request().Header
+}
+
+func DefaultVersionHostname(ctx netcontext.Context) string {
+	return ctxHeaders(ctx).Get(hDefaultVersionHostname)
+}
+
+func RequestID(ctx netcontext.Context) string {
+	return ctxHeaders(ctx).Get(hRequestLogId)
+}
+
+func Datacenter(ctx netcontext.Context) string {
+	return ctxHeaders(ctx).Get(hDatacenter)
+}
+
+func ServerSoftware() string {
+	// TODO(dsymonds): Remove fallback when we've verified this.
+	if s := os.Getenv("SERVER_SOFTWARE"); s != "" {
+		return s
+	}
+	return "Google App Engine/1.x.x"
+}
+
+// TODO(dsymonds): Remove the metadata fetches.
+
+func ModuleName(_ netcontext.Context) string {
+	if s := os.Getenv("GAE_MODULE_NAME"); s != "" {
+		return s
+	}
+	return string(mustGetMetadata("instance/attributes/gae_backend_name"))
+}
+
+func VersionID(_ netcontext.Context) string {
+	if s1, s2 := os.Getenv("GAE_MODULE_VERSION"), os.Getenv("GAE_MINOR_VERSION"); s1 != "" && s2 != "" {
+		return s1 + "." + s2
+	}
+	return string(mustGetMetadata("instance/attributes/gae_backend_version")) + "." + string(mustGetMetadata("instance/attributes/gae_backend_minor_version"))
+}
+
+func InstanceID() string {
+	if s := os.Getenv("GAE_MODULE_INSTANCE"); s != "" {
+		return s
+	}
+	return string(mustGetMetadata("instance/attributes/gae_backend_instance"))
+}
+
+func partitionlessAppID() string {
+	// gae_project has everything except the partition prefix.
+	appID := os.Getenv("GAE_LONG_APP_ID")
+	if appID == "" {
+		appID = string(mustGetMetadata("instance/attributes/gae_project"))
+	}
+	return appID
+}
+
+func fullyQualifiedAppID(_ netcontext.Context) string {
+	appID := partitionlessAppID()
+
+	part := os.Getenv("GAE_PARTITION")
+	if part == "" {
+		part = string(mustGetMetadata("instance/attributes/gae_partition"))
+	}
+
+	if part != "" {
+		appID = part + "~" + appID
+	}
+	return appID
+}
+
+func IsDevAppServer() bool {
+	return os.Getenv("RUN_WITH_DEVAPPSERVER") != ""
+}
diff --git a/vendor/google.golang.org/appengine/internal/internal.go b/vendor/google.golang.org/appengine/internal/internal.go
new file mode 100644
index 0000000..66e8d76
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/internal.go
@@ -0,0 +1,144 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// Package internal provides support for package appengine.
+//
+// Programs should not use this package directly. Its API is not stable.
+// Use packages appengine and appengine/* instead.
+package internal
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"net/url"
+	"os"
+
+	"github.com/golang/protobuf/proto"
+
+	remotepb "google.golang.org/appengine/internal/remote_api"
+)
+
+// errorCodeMaps is a map of service name to the error code map for the service.
+var errorCodeMaps = make(map[string]map[int32]string)
+
+// RegisterErrorCodeMap is called from API implementations to register their
+// error code map. This should only be called from init functions.
+func RegisterErrorCodeMap(service string, m map[int32]string) {
+	errorCodeMaps[service] = m
+}
+
+type timeoutCodeKey struct {
+	service string
+	code    int32
+}
+
+// timeoutCodes is the set of service+code pairs that represent timeouts.
+var timeoutCodes = make(map[timeoutCodeKey]bool)
+
+func RegisterTimeoutErrorCode(service string, code int32) {
+	timeoutCodes[timeoutCodeKey{service, code}] = true
+}
+
+// APIError is the type returned by appengine.Context's Call method
+// when an API call fails in an API-specific way. This may be, for instance,
+// a taskqueue API call failing with TaskQueueServiceError::UNKNOWN_QUEUE.
+type APIError struct {
+	Service string
+	Detail  string
+	Code    int32 // API-specific error code
+}
+
+func (e *APIError) Error() string {
+	if e.Code == 0 {
+		if e.Detail == "" {
+			return "APIError <empty>"
+		}
+		return e.Detail
+	}
+	s := fmt.Sprintf("API error %d", e.Code)
+	if m, ok := errorCodeMaps[e.Service]; ok {
+		s += " (" + e.Service + ": " + m[e.Code] + ")"
+	} else {
+		// Shouldn't happen, but provide a bit more detail if it does.
+		s = e.Service + " " + s
+	}
+	if e.Detail != "" {
+		s += ": " + e.Detail
+	}
+	return s
+}
+
+func (e *APIError) IsTimeout() bool {
+	return timeoutCodes[timeoutCodeKey{e.Service, e.Code}]
+}
+
+// CallError is the type returned by appengine.Context's Call method when an
+// API call fails in a generic way, such as RpcError::CAPABILITY_DISABLED.
+type CallError struct {
+	Detail string
+	Code   int32
+	// TODO: Remove this if we get a distinguishable error code.
+	Timeout bool
+}
+
+func (e *CallError) Error() string {
+	var msg string
+	switch remotepb.RpcError_ErrorCode(e.Code) {
+	case remotepb.RpcError_UNKNOWN:
+		return e.Detail
+	case remotepb.RpcError_OVER_QUOTA:
+		msg = "Over quota"
+	case remotepb.RpcError_CAPABILITY_DISABLED:
+		msg = "Capability disabled"
+	case remotepb.RpcError_CANCELLED:
+		msg = "Canceled"
+	default:
+		msg = fmt.Sprintf("Call error %d", e.Code)
+	}
+	s := msg + ": " + e.Detail
+	if e.Timeout {
+		s += " (timeout)"
+	}
+	return s
+}
+
+func (e *CallError) IsTimeout() bool {
+	return e.Timeout
+}
+
+func Main() {
+	installHealthChecker(http.DefaultServeMux)
+
+	port := "8080"
+	if s := os.Getenv("PORT"); s != "" {
+		port = s
+	}
+
+	if err := http.ListenAndServe(":"+port, http.HandlerFunc(handleHTTP)); err != nil {
+		log.Fatalf("http.ListenAndServe: %v", err)
+	}
+}
+
+func installHealthChecker(mux *http.ServeMux) {
+	// If no health check handler has been installed by this point, add a trivial one.
+	const healthPath = "/_ah/health"
+	hreq := &http.Request{
+		Method: "GET",
+		URL: &url.URL{
+			Path: healthPath,
+		},
+	}
+	if _, pat := mux.Handler(hreq); pat != healthPath {
+		mux.HandleFunc(healthPath, func(w http.ResponseWriter, r *http.Request) {
+			io.WriteString(w, "ok")
+		})
+	}
+}
+
+// NamespaceMods is a map from API service to a function that will mutate an RPC request to attach a namespace.
+// The function should be prepared to be called on the same message more than once; it should only modify the
+// RPC request the first time.
+var NamespaceMods = make(map[string]func(m proto.Message, namespace string))
diff --git a/vendor/google.golang.org/appengine/internal/log_vm.go b/vendor/google.golang.org/appengine/internal/log_vm.go
new file mode 100644
index 0000000..1e7c9f2
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/log_vm.go
@@ -0,0 +1,109 @@
+// Copyright 2016 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// +build !appengine
+
+package internal
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+// jsonLogger writes logs in the JSON format required for Flex Logging. It can
+// be used concurrently.
+type jsonLogger struct {
+	mu  sync.Mutex
+	enc *json.Encoder
+}
+
+type logLine struct {
+	Message   string       `json:"message"`
+	Timestamp logTimestamp `json:"timestamp"`
+	Severity  string       `json:"severity"`
+	TraceID   string       `json:"traceId,omitempty"`
+}
+
+type logTimestamp struct {
+	Seconds int64 `json:"seconds"`
+	Nanos   int   `json:"nanos"`
+}
+
+var (
+	logger     *jsonLogger
+	loggerOnce sync.Once
+
+	logPath      = "/var/log/app_engine/app.json"
+	stderrLogger = newJSONLogger(os.Stderr)
+	testLogger   = newJSONLogger(ioutil.Discard)
+
+	levels = map[int64]string{
+		0: "DEBUG",
+		1: "INFO",
+		2: "WARNING",
+		3: "ERROR",
+		4: "CRITICAL",
+	}
+)
+
+func globalLogger() *jsonLogger {
+	loggerOnce.Do(func() {
+		f, err := os.OpenFile(logPath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0666)
+		if err != nil {
+			log.Printf("failed to open/create log file, logging to stderr: %v", err)
+			logger = stderrLogger
+			return
+		}
+
+		logger = newJSONLogger(f)
+	})
+
+	return logger
+}
+
+func logf(ctx *context, level int64, format string, args ...interface{}) {
+	s := strings.TrimSpace(fmt.Sprintf(format, args...))
+	now := time.Now()
+
+	trace := ctx.req.Header.Get(traceHeader)
+	if i := strings.Index(trace, "/"); i > -1 {
+		trace = trace[:i]
+	}
+
+	line := &logLine{
+		Message: s,
+		Timestamp: logTimestamp{
+			Seconds: now.Unix(),
+			Nanos:   now.Nanosecond(),
+		},
+		Severity: levels[level],
+		TraceID:  trace,
+	}
+
+	if err := ctx.logger.emit(line); err != nil {
+		log.Printf("failed to write log line to file: %v", err)
+	}
+
+	log.Print(levels[level] + ": " + s)
+}
+
+func newJSONLogger(w io.Writer) *jsonLogger {
+	return &jsonLogger{
+		enc: json.NewEncoder(w),
+	}
+}
+
+func (l *jsonLogger) emit(line *logLine) error {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+
+	return l.enc.Encode(line)
+}
diff --git a/vendor/google.golang.org/appengine/internal/metadata.go b/vendor/google.golang.org/appengine/internal/metadata.go
new file mode 100644
index 0000000..9cc1f71
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/metadata.go
@@ -0,0 +1,61 @@
+// Copyright 2014 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package internal
+
+// This file has code for accessing metadata.
+//
+// References:
+//	https://cloud.google.com/compute/docs/metadata
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+)
+
+const (
+	metadataHost = "metadata"
+	metadataPath = "/computeMetadata/v1/"
+)
+
+var (
+	metadataRequestHeaders = http.Header{
+		"Metadata-Flavor": []string{"Google"},
+	}
+)
+
+// TODO(dsymonds): Do we need to support default values, like Python?
+func mustGetMetadata(key string) []byte {
+	b, err := getMetadata(key)
+	if err != nil {
+		log.Fatalf("Metadata fetch failed: %v", err)
+	}
+	return b
+}
+
+func getMetadata(key string) ([]byte, error) {
+	// TODO(dsymonds): May need to use url.Parse to support keys with query args.
+	req := &http.Request{
+		Method: "GET",
+		URL: &url.URL{
+			Scheme: "http",
+			Host:   metadataHost,
+			Path:   metadataPath + key,
+		},
+		Header: metadataRequestHeaders,
+		Host:   metadataHost,
+	}
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("metadata server returned HTTP %d", resp.StatusCode)
+	}
+	return ioutil.ReadAll(resp.Body)
+}
diff --git a/vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go b/vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go
new file mode 100644
index 0000000..a0145ed
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/modules/modules_service.pb.go
@@ -0,0 +1,375 @@
+// Code generated by protoc-gen-go.
+// source: google.golang.org/appengine/internal/modules/modules_service.proto
+// DO NOT EDIT!
+
+/*
+Package modules is a generated protocol buffer package.
+
+It is generated from these files:
+	google.golang.org/appengine/internal/modules/modules_service.proto
+
+It has these top-level messages:
+	ModulesServiceError
+	GetModulesRequest
+	GetModulesResponse
+	GetVersionsRequest
+	GetVersionsResponse
+	GetDefaultVersionRequest
+	GetDefaultVersionResponse
+	GetNumInstancesRequest
+	GetNumInstancesResponse
+	SetNumInstancesRequest
+	SetNumInstancesResponse
+	StartModuleRequest
+	StartModuleResponse
+	StopModuleRequest
+	StopModuleResponse
+	GetHostnameRequest
+	GetHostnameResponse
+*/
+package modules
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type ModulesServiceError_ErrorCode int32
+
+const (
+	ModulesServiceError_OK                ModulesServiceError_ErrorCode = 0
+	ModulesServiceError_INVALID_MODULE    ModulesServiceError_ErrorCode = 1
+	ModulesServiceError_INVALID_VERSION   ModulesServiceError_ErrorCode = 2
+	ModulesServiceError_INVALID_INSTANCES ModulesServiceError_ErrorCode = 3
+	ModulesServiceError_TRANSIENT_ERROR   ModulesServiceError_ErrorCode = 4
+	ModulesServiceError_UNEXPECTED_STATE  ModulesServiceError_ErrorCode = 5
+)
+
+var ModulesServiceError_ErrorCode_name = map[int32]string{
+	0: "OK",
+	1: "INVALID_MODULE",
+	2: "INVALID_VERSION",
+	3: "INVALID_INSTANCES",
+	4: "TRANSIENT_ERROR",
+	5: "UNEXPECTED_STATE",
+}
+var ModulesServiceError_ErrorCode_value = map[string]int32{
+	"OK":                0,
+	"INVALID_MODULE":    1,
+	"INVALID_VERSION":   2,
+	"INVALID_INSTANCES": 3,
+	"TRANSIENT_ERROR":   4,
+	"UNEXPECTED_STATE":  5,
+}
+
+func (x ModulesServiceError_ErrorCode) Enum() *ModulesServiceError_ErrorCode {
+	p := new(ModulesServiceError_ErrorCode)
+	*p = x
+	return p
+}
+func (x ModulesServiceError_ErrorCode) String() string {
+	return proto.EnumName(ModulesServiceError_ErrorCode_name, int32(x))
+}
+func (x *ModulesServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(ModulesServiceError_ErrorCode_value, data, "ModulesServiceError_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = ModulesServiceError_ErrorCode(value)
+	return nil
+}
+
+type ModulesServiceError struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *ModulesServiceError) Reset()         { *m = ModulesServiceError{} }
+func (m *ModulesServiceError) String() string { return proto.CompactTextString(m) }
+func (*ModulesServiceError) ProtoMessage()    {}
+
+type GetModulesRequest struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *GetModulesRequest) Reset()         { *m = GetModulesRequest{} }
+func (m *GetModulesRequest) String() string { return proto.CompactTextString(m) }
+func (*GetModulesRequest) ProtoMessage()    {}
+
+type GetModulesResponse struct {
+	Module           []string `protobuf:"bytes,1,rep,name=module" json:"module,omitempty"`
+	XXX_unrecognized []byte   `json:"-"`
+}
+
+func (m *GetModulesResponse) Reset()         { *m = GetModulesResponse{} }
+func (m *GetModulesResponse) String() string { return proto.CompactTextString(m) }
+func (*GetModulesResponse) ProtoMessage()    {}
+
+func (m *GetModulesResponse) GetModule() []string {
+	if m != nil {
+		return m.Module
+	}
+	return nil
+}
+
+type GetVersionsRequest struct {
+	Module           *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetVersionsRequest) Reset()         { *m = GetVersionsRequest{} }
+func (m *GetVersionsRequest) String() string { return proto.CompactTextString(m) }
+func (*GetVersionsRequest) ProtoMessage()    {}
+
+func (m *GetVersionsRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+type GetVersionsResponse struct {
+	Version          []string `protobuf:"bytes,1,rep,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte   `json:"-"`
+}
+
+func (m *GetVersionsResponse) Reset()         { *m = GetVersionsResponse{} }
+func (m *GetVersionsResponse) String() string { return proto.CompactTextString(m) }
+func (*GetVersionsResponse) ProtoMessage()    {}
+
+func (m *GetVersionsResponse) GetVersion() []string {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+type GetDefaultVersionRequest struct {
+	Module           *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetDefaultVersionRequest) Reset()         { *m = GetDefaultVersionRequest{} }
+func (m *GetDefaultVersionRequest) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultVersionRequest) ProtoMessage()    {}
+
+func (m *GetDefaultVersionRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+type GetDefaultVersionResponse struct {
+	Version          *string `protobuf:"bytes,1,req,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetDefaultVersionResponse) Reset()         { *m = GetDefaultVersionResponse{} }
+func (m *GetDefaultVersionResponse) String() string { return proto.CompactTextString(m) }
+func (*GetDefaultVersionResponse) ProtoMessage()    {}
+
+func (m *GetDefaultVersionResponse) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type GetNumInstancesRequest struct {
+	Module           *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version          *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetNumInstancesRequest) Reset()         { *m = GetNumInstancesRequest{} }
+func (m *GetNumInstancesRequest) String() string { return proto.CompactTextString(m) }
+func (*GetNumInstancesRequest) ProtoMessage()    {}
+
+func (m *GetNumInstancesRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *GetNumInstancesRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type GetNumInstancesResponse struct {
+	Instances        *int64 `protobuf:"varint,1,req,name=instances" json:"instances,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *GetNumInstancesResponse) Reset()         { *m = GetNumInstancesResponse{} }
+func (m *GetNumInstancesResponse) String() string { return proto.CompactTextString(m) }
+func (*GetNumInstancesResponse) ProtoMessage()    {}
+
+func (m *GetNumInstancesResponse) GetInstances() int64 {
+	if m != nil && m.Instances != nil {
+		return *m.Instances
+	}
+	return 0
+}
+
+type SetNumInstancesRequest struct {
+	Module           *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version          *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	Instances        *int64  `protobuf:"varint,3,req,name=instances" json:"instances,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *SetNumInstancesRequest) Reset()         { *m = SetNumInstancesRequest{} }
+func (m *SetNumInstancesRequest) String() string { return proto.CompactTextString(m) }
+func (*SetNumInstancesRequest) ProtoMessage()    {}
+
+func (m *SetNumInstancesRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *SetNumInstancesRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+func (m *SetNumInstancesRequest) GetInstances() int64 {
+	if m != nil && m.Instances != nil {
+		return *m.Instances
+	}
+	return 0
+}
+
+type SetNumInstancesResponse struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *SetNumInstancesResponse) Reset()         { *m = SetNumInstancesResponse{} }
+func (m *SetNumInstancesResponse) String() string { return proto.CompactTextString(m) }
+func (*SetNumInstancesResponse) ProtoMessage()    {}
+
+type StartModuleRequest struct {
+	Module           *string `protobuf:"bytes,1,req,name=module" json:"module,omitempty"`
+	Version          *string `protobuf:"bytes,2,req,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *StartModuleRequest) Reset()         { *m = StartModuleRequest{} }
+func (m *StartModuleRequest) String() string { return proto.CompactTextString(m) }
+func (*StartModuleRequest) ProtoMessage()    {}
+
+func (m *StartModuleRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *StartModuleRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type StartModuleResponse struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *StartModuleResponse) Reset()         { *m = StartModuleResponse{} }
+func (m *StartModuleResponse) String() string { return proto.CompactTextString(m) }
+func (*StartModuleResponse) ProtoMessage()    {}
+
+type StopModuleRequest struct {
+	Module           *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version          *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *StopModuleRequest) Reset()         { *m = StopModuleRequest{} }
+func (m *StopModuleRequest) String() string { return proto.CompactTextString(m) }
+func (*StopModuleRequest) ProtoMessage()    {}
+
+func (m *StopModuleRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *StopModuleRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+type StopModuleResponse struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *StopModuleResponse) Reset()         { *m = StopModuleResponse{} }
+func (m *StopModuleResponse) String() string { return proto.CompactTextString(m) }
+func (*StopModuleResponse) ProtoMessage()    {}
+
+type GetHostnameRequest struct {
+	Module           *string `protobuf:"bytes,1,opt,name=module" json:"module,omitempty"`
+	Version          *string `protobuf:"bytes,2,opt,name=version" json:"version,omitempty"`
+	Instance         *string `protobuf:"bytes,3,opt,name=instance" json:"instance,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetHostnameRequest) Reset()         { *m = GetHostnameRequest{} }
+func (m *GetHostnameRequest) String() string { return proto.CompactTextString(m) }
+func (*GetHostnameRequest) ProtoMessage()    {}
+
+func (m *GetHostnameRequest) GetModule() string {
+	if m != nil && m.Module != nil {
+		return *m.Module
+	}
+	return ""
+}
+
+func (m *GetHostnameRequest) GetVersion() string {
+	if m != nil && m.Version != nil {
+		return *m.Version
+	}
+	return ""
+}
+
+func (m *GetHostnameRequest) GetInstance() string {
+	if m != nil && m.Instance != nil {
+		return *m.Instance
+	}
+	return ""
+}
+
+type GetHostnameResponse struct {
+	Hostname         *string `protobuf:"bytes,1,req,name=hostname" json:"hostname,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *GetHostnameResponse) Reset()         { *m = GetHostnameResponse{} }
+func (m *GetHostnameResponse) String() string { return proto.CompactTextString(m) }
+func (*GetHostnameResponse) ProtoMessage()    {}
+
+func (m *GetHostnameResponse) GetHostname() string {
+	if m != nil && m.Hostname != nil {
+		return *m.Hostname
+	}
+	return ""
+}
+
+func init() {
+}
diff --git a/vendor/google.golang.org/appengine/internal/modules/modules_service.proto b/vendor/google.golang.org/appengine/internal/modules/modules_service.proto
new file mode 100644
index 0000000..d29f006
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/modules/modules_service.proto
@@ -0,0 +1,80 @@
+syntax = "proto2";
+option go_package = "modules";
+
+package appengine;
+
+message ModulesServiceError {
+  enum ErrorCode {
+    OK  = 0;
+    INVALID_MODULE = 1;
+    INVALID_VERSION = 2;
+    INVALID_INSTANCES = 3;
+    TRANSIENT_ERROR = 4;
+    UNEXPECTED_STATE = 5;
+  }
+}
+
+message GetModulesRequest {
+}
+
+message GetModulesResponse {
+  repeated string module = 1;
+}
+
+message GetVersionsRequest {
+  optional string module = 1;
+}
+
+message GetVersionsResponse {
+  repeated string version = 1;
+}
+
+message GetDefaultVersionRequest {
+  optional string module = 1;
+}
+
+message GetDefaultVersionResponse {
+  required string version = 1;
+}
+
+message GetNumInstancesRequest {
+  optional string module = 1;
+  optional string version = 2;
+}
+
+message GetNumInstancesResponse {
+  required int64 instances = 1;
+}
+
+message SetNumInstancesRequest {
+  optional string module = 1;
+  optional string version = 2;
+  required int64 instances = 3;
+}
+
+message SetNumInstancesResponse {}
+
+message StartModuleRequest {
+  required string module = 1;
+  required string version = 2;
+}
+
+message StartModuleResponse {}
+
+message StopModuleRequest {
+  optional string module = 1;
+  optional string version = 2;
+}
+
+message StopModuleResponse {}
+
+message GetHostnameRequest {
+  optional string module = 1;
+  optional string version = 2;
+  optional string instance = 3;
+}
+
+message GetHostnameResponse {
+  required string hostname = 1;
+}
+
diff --git a/vendor/google.golang.org/appengine/internal/net.go b/vendor/google.golang.org/appengine/internal/net.go
new file mode 100644
index 0000000..3b94cf0
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/net.go
@@ -0,0 +1,56 @@
+// Copyright 2014 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package internal
+
+// This file implements a network dialer that limits the number of concurrent connections.
+// It is only used for API calls.
+
+import (
+	"log"
+	"net"
+	"runtime"
+	"sync"
+	"time"
+)
+
+var limitSem = make(chan int, 100) // TODO(dsymonds): Use environment variable.
+
+func limitRelease() {
+	// non-blocking
+	select {
+	case <-limitSem:
+	default:
+		// This should not normally happen.
+		log.Print("appengine: unbalanced limitSem release!")
+	}
+}
+
+func limitDial(network, addr string) (net.Conn, error) {
+	limitSem <- 1
+
+	// Dial with a timeout in case the API host is MIA.
+	// The connection should normally be very fast.
+	conn, err := net.DialTimeout(network, addr, 500*time.Millisecond)
+	if err != nil {
+		limitRelease()
+		return nil, err
+	}
+	lc := &limitConn{Conn: conn}
+	runtime.SetFinalizer(lc, (*limitConn).Close) // shouldn't usually be required
+	return lc, nil
+}
+
+type limitConn struct {
+	close sync.Once
+	net.Conn
+}
+
+func (lc *limitConn) Close() error {
+	defer lc.close.Do(func() {
+		limitRelease()
+		runtime.SetFinalizer(lc, nil)
+	})
+	return lc.Conn.Close()
+}
diff --git a/vendor/google.golang.org/appengine/internal/regen.sh b/vendor/google.golang.org/appengine/internal/regen.sh
new file mode 100755
index 0000000..2fdb546
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/regen.sh
@@ -0,0 +1,40 @@
+#!/bin/bash -e
+#
+# This script rebuilds the generated code for the protocol buffers.
+# To run this you will need protoc and goprotobuf installed;
+# see https://github.com/golang/protobuf for instructions.
+
+PKG=google.golang.org/appengine
+
+function die() {
+	echo 1>&2 $*
+	exit 1
+}
+
+# Sanity check that the right tools are accessible.
+for tool in go protoc protoc-gen-go; do
+	q=$(which $tool) || die "didn't find $tool"
+	echo 1>&2 "$tool: $q"
+done
+
+echo -n 1>&2 "finding package dir... "
+pkgdir=$(go list -f '{{.Dir}}' $PKG)
+echo 1>&2 $pkgdir
+base=$(echo $pkgdir | sed "s,/$PKG\$,,")
+echo 1>&2 "base: $base"
+cd $base
+
+# Run protoc once per package.
+for dir in $(find $PKG/internal -name '*.proto' | xargs dirname | sort | uniq); do
+	echo 1>&2 "* $dir"
+	protoc --go_out=. $dir/*.proto
+done
+
+for f in $(find $PKG/internal -name '*.pb.go'); do
+  # Remove proto.RegisterEnum calls.
+  # These cause duplicate registration panics when these packages
+  # are used on classic App Engine. proto.RegisterEnum only affects
+  # parsing the text format; we don't care about that.
+  # https://code.google.com/p/googleappengine/issues/detail?id=11670#c17
+  sed -i '/proto.RegisterEnum/d' $f
+done
diff --git a/vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go
new file mode 100644
index 0000000..526bd39
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.pb.go
@@ -0,0 +1,231 @@
+// Code generated by protoc-gen-go.
+// source: google.golang.org/appengine/internal/remote_api/remote_api.proto
+// DO NOT EDIT!
+
+/*
+Package remote_api is a generated protocol buffer package.
+
+It is generated from these files:
+	google.golang.org/appengine/internal/remote_api/remote_api.proto
+
+It has these top-level messages:
+	Request
+	ApplicationError
+	RpcError
+	Response
+*/
+package remote_api
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type RpcError_ErrorCode int32
+
+const (
+	RpcError_UNKNOWN             RpcError_ErrorCode = 0
+	RpcError_CALL_NOT_FOUND      RpcError_ErrorCode = 1
+	RpcError_PARSE_ERROR         RpcError_ErrorCode = 2
+	RpcError_SECURITY_VIOLATION  RpcError_ErrorCode = 3
+	RpcError_OVER_QUOTA          RpcError_ErrorCode = 4
+	RpcError_REQUEST_TOO_LARGE   RpcError_ErrorCode = 5
+	RpcError_CAPABILITY_DISABLED RpcError_ErrorCode = 6
+	RpcError_FEATURE_DISABLED    RpcError_ErrorCode = 7
+	RpcError_BAD_REQUEST         RpcError_ErrorCode = 8
+	RpcError_RESPONSE_TOO_LARGE  RpcError_ErrorCode = 9
+	RpcError_CANCELLED           RpcError_ErrorCode = 10
+	RpcError_REPLAY_ERROR        RpcError_ErrorCode = 11
+	RpcError_DEADLINE_EXCEEDED   RpcError_ErrorCode = 12
+)
+
+var RpcError_ErrorCode_name = map[int32]string{
+	0:  "UNKNOWN",
+	1:  "CALL_NOT_FOUND",
+	2:  "PARSE_ERROR",
+	3:  "SECURITY_VIOLATION",
+	4:  "OVER_QUOTA",
+	5:  "REQUEST_TOO_LARGE",
+	6:  "CAPABILITY_DISABLED",
+	7:  "FEATURE_DISABLED",
+	8:  "BAD_REQUEST",
+	9:  "RESPONSE_TOO_LARGE",
+	10: "CANCELLED",
+	11: "REPLAY_ERROR",
+	12: "DEADLINE_EXCEEDED",
+}
+var RpcError_ErrorCode_value = map[string]int32{
+	"UNKNOWN":             0,
+	"CALL_NOT_FOUND":      1,
+	"PARSE_ERROR":         2,
+	"SECURITY_VIOLATION":  3,
+	"OVER_QUOTA":          4,
+	"REQUEST_TOO_LARGE":   5,
+	"CAPABILITY_DISABLED": 6,
+	"FEATURE_DISABLED":    7,
+	"BAD_REQUEST":         8,
+	"RESPONSE_TOO_LARGE":  9,
+	"CANCELLED":           10,
+	"REPLAY_ERROR":        11,
+	"DEADLINE_EXCEEDED":   12,
+}
+
+func (x RpcError_ErrorCode) Enum() *RpcError_ErrorCode {
+	p := new(RpcError_ErrorCode)
+	*p = x
+	return p
+}
+func (x RpcError_ErrorCode) String() string {
+	return proto.EnumName(RpcError_ErrorCode_name, int32(x))
+}
+func (x *RpcError_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(RpcError_ErrorCode_value, data, "RpcError_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = RpcError_ErrorCode(value)
+	return nil
+}
+
+type Request struct {
+	ServiceName      *string `protobuf:"bytes,2,req,name=service_name" json:"service_name,omitempty"`
+	Method           *string `protobuf:"bytes,3,req,name=method" json:"method,omitempty"`
+	Request          []byte  `protobuf:"bytes,4,req,name=request" json:"request,omitempty"`
+	RequestId        *string `protobuf:"bytes,5,opt,name=request_id" json:"request_id,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *Request) Reset()         { *m = Request{} }
+func (m *Request) String() string { return proto.CompactTextString(m) }
+func (*Request) ProtoMessage()    {}
+
+func (m *Request) GetServiceName() string {
+	if m != nil && m.ServiceName != nil {
+		return *m.ServiceName
+	}
+	return ""
+}
+
+func (m *Request) GetMethod() string {
+	if m != nil && m.Method != nil {
+		return *m.Method
+	}
+	return ""
+}
+
+func (m *Request) GetRequest() []byte {
+	if m != nil {
+		return m.Request
+	}
+	return nil
+}
+
+func (m *Request) GetRequestId() string {
+	if m != nil && m.RequestId != nil {
+		return *m.RequestId
+	}
+	return ""
+}
+
+type ApplicationError struct {
+	Code             *int32  `protobuf:"varint,1,req,name=code" json:"code,omitempty"`
+	Detail           *string `protobuf:"bytes,2,req,name=detail" json:"detail,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *ApplicationError) Reset()         { *m = ApplicationError{} }
+func (m *ApplicationError) String() string { return proto.CompactTextString(m) }
+func (*ApplicationError) ProtoMessage()    {}
+
+func (m *ApplicationError) GetCode() int32 {
+	if m != nil && m.Code != nil {
+		return *m.Code
+	}
+	return 0
+}
+
+func (m *ApplicationError) GetDetail() string {
+	if m != nil && m.Detail != nil {
+		return *m.Detail
+	}
+	return ""
+}
+
+type RpcError struct {
+	Code             *int32  `protobuf:"varint,1,req,name=code" json:"code,omitempty"`
+	Detail           *string `protobuf:"bytes,2,opt,name=detail" json:"detail,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *RpcError) Reset()         { *m = RpcError{} }
+func (m *RpcError) String() string { return proto.CompactTextString(m) }
+func (*RpcError) ProtoMessage()    {}
+
+func (m *RpcError) GetCode() int32 {
+	if m != nil && m.Code != nil {
+		return *m.Code
+	}
+	return 0
+}
+
+func (m *RpcError) GetDetail() string {
+	if m != nil && m.Detail != nil {
+		return *m.Detail
+	}
+	return ""
+}
+
+type Response struct {
+	Response         []byte            `protobuf:"bytes,1,opt,name=response" json:"response,omitempty"`
+	Exception        []byte            `protobuf:"bytes,2,opt,name=exception" json:"exception,omitempty"`
+	ApplicationError *ApplicationError `protobuf:"bytes,3,opt,name=application_error" json:"application_error,omitempty"`
+	JavaException    []byte            `protobuf:"bytes,4,opt,name=java_exception" json:"java_exception,omitempty"`
+	RpcError         *RpcError         `protobuf:"bytes,5,opt,name=rpc_error" json:"rpc_error,omitempty"`
+	XXX_unrecognized []byte            `json:"-"`
+}
+
+func (m *Response) Reset()         { *m = Response{} }
+func (m *Response) String() string { return proto.CompactTextString(m) }
+func (*Response) ProtoMessage()    {}
+
+func (m *Response) GetResponse() []byte {
+	if m != nil {
+		return m.Response
+	}
+	return nil
+}
+
+func (m *Response) GetException() []byte {
+	if m != nil {
+		return m.Exception
+	}
+	return nil
+}
+
+func (m *Response) GetApplicationError() *ApplicationError {
+	if m != nil {
+		return m.ApplicationError
+	}
+	return nil
+}
+
+func (m *Response) GetJavaException() []byte {
+	if m != nil {
+		return m.JavaException
+	}
+	return nil
+}
+
+func (m *Response) GetRpcError() *RpcError {
+	if m != nil {
+		return m.RpcError
+	}
+	return nil
+}
+
+func init() {
+}
diff --git a/vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto
new file mode 100644
index 0000000..f21763a
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/remote_api/remote_api.proto
@@ -0,0 +1,44 @@
+syntax = "proto2";
+option go_package = "remote_api";
+
+package remote_api;
+
+message Request {
+  required string service_name = 2;
+  required string method = 3;
+  required bytes request = 4;
+  optional string request_id = 5;
+}
+
+message ApplicationError {
+  required int32 code = 1;
+  required string detail = 2;
+}
+
+message RpcError {
+  enum ErrorCode {
+    UNKNOWN = 0;
+    CALL_NOT_FOUND = 1;
+    PARSE_ERROR = 2;
+    SECURITY_VIOLATION = 3;
+    OVER_QUOTA = 4;
+    REQUEST_TOO_LARGE = 5;
+    CAPABILITY_DISABLED = 6;
+    FEATURE_DISABLED = 7;
+    BAD_REQUEST = 8;
+    RESPONSE_TOO_LARGE = 9;
+    CANCELLED = 10;
+    REPLAY_ERROR = 11;
+    DEADLINE_EXCEEDED = 12;
+  }
+  required int32 code = 1;
+  optional string detail = 2;
+}
+
+message Response {
+  optional bytes response = 1;
+  optional bytes exception = 2;
+  optional ApplicationError application_error = 3;
+  optional bytes java_exception = 4;
+  optional RpcError rpc_error = 5;
+}
diff --git a/vendor/google.golang.org/appengine/internal/transaction.go b/vendor/google.golang.org/appengine/internal/transaction.go
new file mode 100644
index 0000000..28a6d18
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/transaction.go
@@ -0,0 +1,107 @@
+// Copyright 2014 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package internal
+
+// This file implements hooks for applying datastore transactions.
+
+import (
+	"errors"
+	"reflect"
+
+	"github.com/golang/protobuf/proto"
+	netcontext "golang.org/x/net/context"
+
+	basepb "google.golang.org/appengine/internal/base"
+	pb "google.golang.org/appengine/internal/datastore"
+)
+
+var transactionSetters = make(map[reflect.Type]reflect.Value)
+
+// RegisterTransactionSetter registers a function that sets transaction information
+// in a protocol buffer message. f should be a function with two arguments,
+// the first being a protocol buffer type, and the second being *datastore.Transaction.
+func RegisterTransactionSetter(f interface{}) {
+	v := reflect.ValueOf(f)
+	transactionSetters[v.Type().In(0)] = v
+}
+
+// applyTransaction applies the transaction t to message pb
+// by using the relevant setter passed to RegisterTransactionSetter.
+func applyTransaction(pb proto.Message, t *pb.Transaction) {
+	v := reflect.ValueOf(pb)
+	if f, ok := transactionSetters[v.Type()]; ok {
+		f.Call([]reflect.Value{v, reflect.ValueOf(t)})
+	}
+}
+
+var transactionKey = "used for *Transaction"
+
+func transactionFromContext(ctx netcontext.Context) *transaction {
+	t, _ := ctx.Value(&transactionKey).(*transaction)
+	return t
+}
+
+func withTransaction(ctx netcontext.Context, t *transaction) netcontext.Context {
+	return netcontext.WithValue(ctx, &transactionKey, t)
+}
+
+type transaction struct {
+	transaction pb.Transaction
+	finished    bool
+}
+
+var ErrConcurrentTransaction = errors.New("internal: concurrent transaction")
+
+func RunTransactionOnce(c netcontext.Context, f func(netcontext.Context) error, xg bool) error {
+	if transactionFromContext(c) != nil {
+		return errors.New("nested transactions are not supported")
+	}
+
+	// Begin the transaction.
+	t := &transaction{}
+	req := &pb.BeginTransactionRequest{
+		App: proto.String(FullyQualifiedAppID(c)),
+	}
+	if xg {
+		req.AllowMultipleEg = proto.Bool(true)
+	}
+	if err := Call(c, "datastore_v3", "BeginTransaction", req, &t.transaction); err != nil {
+		return err
+	}
+
+	// Call f, rolling back the transaction if f returns a non-nil error, or panics.
+	// The panic is not recovered.
+	defer func() {
+		if t.finished {
+			return
+		}
+		t.finished = true
+		// Ignore the error return value, since we are already returning a non-nil
+		// error (or we're panicking).
+		Call(c, "datastore_v3", "Rollback", &t.transaction, &basepb.VoidProto{})
+	}()
+	if err := f(withTransaction(c, t)); err != nil {
+		return err
+	}
+	t.finished = true
+
+	// Commit the transaction.
+	res := &pb.CommitResponse{}
+	err := Call(c, "datastore_v3", "Commit", &t.transaction, res)
+	if ae, ok := err.(*APIError); ok {
+		/* TODO: restore this conditional
+		if appengine.IsDevAppServer() {
+		*/
+		// The Python Dev AppServer raises an ApplicationError with error code 2 (which is
+		// Error.CONCURRENT_TRANSACTION) and message "Concurrency exception.".
+		if ae.Code == int32(pb.Error_BAD_REQUEST) && ae.Detail == "ApplicationError: 2 Concurrency exception." {
+			return ErrConcurrentTransaction
+		}
+		if ae.Code == int32(pb.Error_CONCURRENT_TRANSACTION) {
+			return ErrConcurrentTransaction
+		}
+	}
+	return err
+}
diff --git a/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go
new file mode 100644
index 0000000..af463fb
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go
@@ -0,0 +1,355 @@
+// Code generated by protoc-gen-go.
+// source: google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto
+// DO NOT EDIT!
+
+/*
+Package urlfetch is a generated protocol buffer package.
+
+It is generated from these files:
+	google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto
+
+It has these top-level messages:
+	URLFetchServiceError
+	URLFetchRequest
+	URLFetchResponse
+*/
+package urlfetch
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+type URLFetchServiceError_ErrorCode int32
+
+const (
+	URLFetchServiceError_OK                       URLFetchServiceError_ErrorCode = 0
+	URLFetchServiceError_INVALID_URL              URLFetchServiceError_ErrorCode = 1
+	URLFetchServiceError_FETCH_ERROR              URLFetchServiceError_ErrorCode = 2
+	URLFetchServiceError_UNSPECIFIED_ERROR        URLFetchServiceError_ErrorCode = 3
+	URLFetchServiceError_RESPONSE_TOO_LARGE       URLFetchServiceError_ErrorCode = 4
+	URLFetchServiceError_DEADLINE_EXCEEDED        URLFetchServiceError_ErrorCode = 5
+	URLFetchServiceError_SSL_CERTIFICATE_ERROR    URLFetchServiceError_ErrorCode = 6
+	URLFetchServiceError_DNS_ERROR                URLFetchServiceError_ErrorCode = 7
+	URLFetchServiceError_CLOSED                   URLFetchServiceError_ErrorCode = 8
+	URLFetchServiceError_INTERNAL_TRANSIENT_ERROR URLFetchServiceError_ErrorCode = 9
+	URLFetchServiceError_TOO_MANY_REDIRECTS       URLFetchServiceError_ErrorCode = 10
+	URLFetchServiceError_MALFORMED_REPLY          URLFetchServiceError_ErrorCode = 11
+	URLFetchServiceError_CONNECTION_ERROR         URLFetchServiceError_ErrorCode = 12
+)
+
+var URLFetchServiceError_ErrorCode_name = map[int32]string{
+	0:  "OK",
+	1:  "INVALID_URL",
+	2:  "FETCH_ERROR",
+	3:  "UNSPECIFIED_ERROR",
+	4:  "RESPONSE_TOO_LARGE",
+	5:  "DEADLINE_EXCEEDED",
+	6:  "SSL_CERTIFICATE_ERROR",
+	7:  "DNS_ERROR",
+	8:  "CLOSED",
+	9:  "INTERNAL_TRANSIENT_ERROR",
+	10: "TOO_MANY_REDIRECTS",
+	11: "MALFORMED_REPLY",
+	12: "CONNECTION_ERROR",
+}
+var URLFetchServiceError_ErrorCode_value = map[string]int32{
+	"OK":                       0,
+	"INVALID_URL":              1,
+	"FETCH_ERROR":              2,
+	"UNSPECIFIED_ERROR":        3,
+	"RESPONSE_TOO_LARGE":       4,
+	"DEADLINE_EXCEEDED":        5,
+	"SSL_CERTIFICATE_ERROR":    6,
+	"DNS_ERROR":                7,
+	"CLOSED":                   8,
+	"INTERNAL_TRANSIENT_ERROR": 9,
+	"TOO_MANY_REDIRECTS":       10,
+	"MALFORMED_REPLY":          11,
+	"CONNECTION_ERROR":         12,
+}
+
+func (x URLFetchServiceError_ErrorCode) Enum() *URLFetchServiceError_ErrorCode {
+	p := new(URLFetchServiceError_ErrorCode)
+	*p = x
+	return p
+}
+func (x URLFetchServiceError_ErrorCode) String() string {
+	return proto.EnumName(URLFetchServiceError_ErrorCode_name, int32(x))
+}
+func (x *URLFetchServiceError_ErrorCode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(URLFetchServiceError_ErrorCode_value, data, "URLFetchServiceError_ErrorCode")
+	if err != nil {
+		return err
+	}
+	*x = URLFetchServiceError_ErrorCode(value)
+	return nil
+}
+
+type URLFetchRequest_RequestMethod int32
+
+const (
+	URLFetchRequest_GET    URLFetchRequest_RequestMethod = 1
+	URLFetchRequest_POST   URLFetchRequest_RequestMethod = 2
+	URLFetchRequest_HEAD   URLFetchRequest_RequestMethod = 3
+	URLFetchRequest_PUT    URLFetchRequest_RequestMethod = 4
+	URLFetchRequest_DELETE URLFetchRequest_RequestMethod = 5
+	URLFetchRequest_PATCH  URLFetchRequest_RequestMethod = 6
+)
+
+var URLFetchRequest_RequestMethod_name = map[int32]string{
+	1: "GET",
+	2: "POST",
+	3: "HEAD",
+	4: "PUT",
+	5: "DELETE",
+	6: "PATCH",
+}
+var URLFetchRequest_RequestMethod_value = map[string]int32{
+	"GET":    1,
+	"POST":   2,
+	"HEAD":   3,
+	"PUT":    4,
+	"DELETE": 5,
+	"PATCH":  6,
+}
+
+func (x URLFetchRequest_RequestMethod) Enum() *URLFetchRequest_RequestMethod {
+	p := new(URLFetchRequest_RequestMethod)
+	*p = x
+	return p
+}
+func (x URLFetchRequest_RequestMethod) String() string {
+	return proto.EnumName(URLFetchRequest_RequestMethod_name, int32(x))
+}
+func (x *URLFetchRequest_RequestMethod) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(URLFetchRequest_RequestMethod_value, data, "URLFetchRequest_RequestMethod")
+	if err != nil {
+		return err
+	}
+	*x = URLFetchRequest_RequestMethod(value)
+	return nil
+}
+
+type URLFetchServiceError struct {
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *URLFetchServiceError) Reset()         { *m = URLFetchServiceError{} }
+func (m *URLFetchServiceError) String() string { return proto.CompactTextString(m) }
+func (*URLFetchServiceError) ProtoMessage()    {}
+
+type URLFetchRequest struct {
+	Method                        *URLFetchRequest_RequestMethod `protobuf:"varint,1,req,name=Method,enum=appengine.URLFetchRequest_RequestMethod" json:"Method,omitempty"`
+	Url                           *string                        `protobuf:"bytes,2,req,name=Url" json:"Url,omitempty"`
+	Header                        []*URLFetchRequest_Header      `protobuf:"group,3,rep,name=Header" json:"header,omitempty"`
+	Payload                       []byte                         `protobuf:"bytes,6,opt,name=Payload" json:"Payload,omitempty"`
+	FollowRedirects               *bool                          `protobuf:"varint,7,opt,name=FollowRedirects,def=1" json:"FollowRedirects,omitempty"`
+	Deadline                      *float64                       `protobuf:"fixed64,8,opt,name=Deadline" json:"Deadline,omitempty"`
+	MustValidateServerCertificate *bool                          `protobuf:"varint,9,opt,name=MustValidateServerCertificate,def=1" json:"MustValidateServerCertificate,omitempty"`
+	XXX_unrecognized              []byte                         `json:"-"`
+}
+
+func (m *URLFetchRequest) Reset()         { *m = URLFetchRequest{} }
+func (m *URLFetchRequest) String() string { return proto.CompactTextString(m) }
+func (*URLFetchRequest) ProtoMessage()    {}
+
+const Default_URLFetchRequest_FollowRedirects bool = true
+const Default_URLFetchRequest_MustValidateServerCertificate bool = true
+
+func (m *URLFetchRequest) GetMethod() URLFetchRequest_RequestMethod {
+	if m != nil && m.Method != nil {
+		return *m.Method
+	}
+	return URLFetchRequest_GET
+}
+
+func (m *URLFetchRequest) GetUrl() string {
+	if m != nil && m.Url != nil {
+		return *m.Url
+	}
+	return ""
+}
+
+func (m *URLFetchRequest) GetHeader() []*URLFetchRequest_Header {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *URLFetchRequest) GetPayload() []byte {
+	if m != nil {
+		return m.Payload
+	}
+	return nil
+}
+
+func (m *URLFetchRequest) GetFollowRedirects() bool {
+	if m != nil && m.FollowRedirects != nil {
+		return *m.FollowRedirects
+	}
+	return Default_URLFetchRequest_FollowRedirects
+}
+
+func (m *URLFetchRequest) GetDeadline() float64 {
+	if m != nil && m.Deadline != nil {
+		return *m.Deadline
+	}
+	return 0
+}
+
+func (m *URLFetchRequest) GetMustValidateServerCertificate() bool {
+	if m != nil && m.MustValidateServerCertificate != nil {
+		return *m.MustValidateServerCertificate
+	}
+	return Default_URLFetchRequest_MustValidateServerCertificate
+}
+
+type URLFetchRequest_Header struct {
+	Key              *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"`
+	Value            *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *URLFetchRequest_Header) Reset()         { *m = URLFetchRequest_Header{} }
+func (m *URLFetchRequest_Header) String() string { return proto.CompactTextString(m) }
+func (*URLFetchRequest_Header) ProtoMessage()    {}
+
+func (m *URLFetchRequest_Header) GetKey() string {
+	if m != nil && m.Key != nil {
+		return *m.Key
+	}
+	return ""
+}
+
+func (m *URLFetchRequest_Header) GetValue() string {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return ""
+}
+
+type URLFetchResponse struct {
+	Content               []byte                     `protobuf:"bytes,1,opt,name=Content" json:"Content,omitempty"`
+	StatusCode            *int32                     `protobuf:"varint,2,req,name=StatusCode" json:"StatusCode,omitempty"`
+	Header                []*URLFetchResponse_Header `protobuf:"group,3,rep,name=Header" json:"header,omitempty"`
+	ContentWasTruncated   *bool                      `protobuf:"varint,6,opt,name=ContentWasTruncated,def=0" json:"ContentWasTruncated,omitempty"`
+	ExternalBytesSent     *int64                     `protobuf:"varint,7,opt,name=ExternalBytesSent" json:"ExternalBytesSent,omitempty"`
+	ExternalBytesReceived *int64                     `protobuf:"varint,8,opt,name=ExternalBytesReceived" json:"ExternalBytesReceived,omitempty"`
+	FinalUrl              *string                    `protobuf:"bytes,9,opt,name=FinalUrl" json:"FinalUrl,omitempty"`
+	ApiCpuMilliseconds    *int64                     `protobuf:"varint,10,opt,name=ApiCpuMilliseconds,def=0" json:"ApiCpuMilliseconds,omitempty"`
+	ApiBytesSent          *int64                     `protobuf:"varint,11,opt,name=ApiBytesSent,def=0" json:"ApiBytesSent,omitempty"`
+	ApiBytesReceived      *int64                     `protobuf:"varint,12,opt,name=ApiBytesReceived,def=0" json:"ApiBytesReceived,omitempty"`
+	XXX_unrecognized      []byte                     `json:"-"`
+}
+
+func (m *URLFetchResponse) Reset()         { *m = URLFetchResponse{} }
+func (m *URLFetchResponse) String() string { return proto.CompactTextString(m) }
+func (*URLFetchResponse) ProtoMessage()    {}
+
+const Default_URLFetchResponse_ContentWasTruncated bool = false
+const Default_URLFetchResponse_ApiCpuMilliseconds int64 = 0
+const Default_URLFetchResponse_ApiBytesSent int64 = 0
+const Default_URLFetchResponse_ApiBytesReceived int64 = 0
+
+func (m *URLFetchResponse) GetContent() []byte {
+	if m != nil {
+		return m.Content
+	}
+	return nil
+}
+
+func (m *URLFetchResponse) GetStatusCode() int32 {
+	if m != nil && m.StatusCode != nil {
+		return *m.StatusCode
+	}
+	return 0
+}
+
+func (m *URLFetchResponse) GetHeader() []*URLFetchResponse_Header {
+	if m != nil {
+		return m.Header
+	}
+	return nil
+}
+
+func (m *URLFetchResponse) GetContentWasTruncated() bool {
+	if m != nil && m.ContentWasTruncated != nil {
+		return *m.ContentWasTruncated
+	}
+	return Default_URLFetchResponse_ContentWasTruncated
+}
+
+func (m *URLFetchResponse) GetExternalBytesSent() int64 {
+	if m != nil && m.ExternalBytesSent != nil {
+		return *m.ExternalBytesSent
+	}
+	return 0
+}
+
+func (m *URLFetchResponse) GetExternalBytesReceived() int64 {
+	if m != nil && m.ExternalBytesReceived != nil {
+		return *m.ExternalBytesReceived
+	}
+	return 0
+}
+
+func (m *URLFetchResponse) GetFinalUrl() string {
+	if m != nil && m.FinalUrl != nil {
+		return *m.FinalUrl
+	}
+	return ""
+}
+
+func (m *URLFetchResponse) GetApiCpuMilliseconds() int64 {
+	if m != nil && m.ApiCpuMilliseconds != nil {
+		return *m.ApiCpuMilliseconds
+	}
+	return Default_URLFetchResponse_ApiCpuMilliseconds
+}
+
+func (m *URLFetchResponse) GetApiBytesSent() int64 {
+	if m != nil && m.ApiBytesSent != nil {
+		return *m.ApiBytesSent
+	}
+	return Default_URLFetchResponse_ApiBytesSent
+}
+
+func (m *URLFetchResponse) GetApiBytesReceived() int64 {
+	if m != nil && m.ApiBytesReceived != nil {
+		return *m.ApiBytesReceived
+	}
+	return Default_URLFetchResponse_ApiBytesReceived
+}
+
+type URLFetchResponse_Header struct {
+	Key              *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"`
+	Value            *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *URLFetchResponse_Header) Reset()         { *m = URLFetchResponse_Header{} }
+func (m *URLFetchResponse_Header) String() string { return proto.CompactTextString(m) }
+func (*URLFetchResponse_Header) ProtoMessage()    {}
+
+func (m *URLFetchResponse_Header) GetKey() string {
+	if m != nil && m.Key != nil {
+		return *m.Key
+	}
+	return ""
+}
+
+func (m *URLFetchResponse_Header) GetValue() string {
+	if m != nil && m.Value != nil {
+		return *m.Value
+	}
+	return ""
+}
+
+func init() {
+}
diff --git a/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto
new file mode 100644
index 0000000..f695edf
--- /dev/null
+++ b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto
@@ -0,0 +1,64 @@
+syntax = "proto2";
+option go_package = "urlfetch";
+
+package appengine;
+
+message URLFetchServiceError {
+  enum ErrorCode {
+    OK = 0;
+    INVALID_URL = 1;
+    FETCH_ERROR = 2;
+    UNSPECIFIED_ERROR = 3;
+    RESPONSE_TOO_LARGE = 4;
+    DEADLINE_EXCEEDED = 5;
+    SSL_CERTIFICATE_ERROR = 6;
+    DNS_ERROR = 7;
+    CLOSED = 8;
+    INTERNAL_TRANSIENT_ERROR = 9;
+    TOO_MANY_REDIRECTS = 10;
+    MALFORMED_REPLY = 11;
+    CONNECTION_ERROR = 12;
+  }
+}
+
+message URLFetchRequest {
+  enum RequestMethod {
+    GET = 1;
+    POST = 2;
+    HEAD = 3;
+    PUT = 4;
+    DELETE = 5;
+    PATCH = 6;
+  }
+  required RequestMethod Method = 1;
+  required string Url = 2;
+  repeated group Header = 3 {
+    required string Key = 4;
+    required string Value = 5;
+  }
+  optional bytes Payload = 6 [ctype=CORD];
+
+  optional bool FollowRedirects = 7 [default=true];
+
+  optional double Deadline = 8;
+
+  optional bool MustValidateServerCertificate = 9 [default=true];
+}
+
+message URLFetchResponse {
+  optional bytes Content = 1;
+  required int32 StatusCode = 2;
+  repeated group Header = 3 {
+    required string Key = 4;
+    required string Value = 5;
+  }
+  optional bool ContentWasTruncated = 6 [default=false];
+  optional int64 ExternalBytesSent = 7;
+  optional int64 ExternalBytesReceived = 8;
+
+  optional string FinalUrl = 9;
+
+  optional int64 ApiCpuMilliseconds = 10 [default=0];
+  optional int64 ApiBytesSent = 11 [default=0];
+  optional int64 ApiBytesReceived = 12 [default=0];
+}
diff --git a/vendor/google.golang.org/appengine/namespace.go b/vendor/google.golang.org/appengine/namespace.go
new file mode 100644
index 0000000..21860ca
--- /dev/null
+++ b/vendor/google.golang.org/appengine/namespace.go
@@ -0,0 +1,25 @@
+// Copyright 2012 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package appengine
+
+import (
+	"fmt"
+	"regexp"
+
+	"golang.org/x/net/context"
+
+	"google.golang.org/appengine/internal"
+)
+
+// Namespace returns a replacement context that operates within the given namespace.
+func Namespace(c context.Context, namespace string) (context.Context, error) {
+	if !validNamespace.MatchString(namespace) {
+		return nil, fmt.Errorf("appengine: namespace %q does not match /%s/", namespace, validNamespace)
+	}
+	return internal.NamespacedContext(c, namespace), nil
+}
+
+// validNamespace matches valid namespace names.
+var validNamespace = regexp.MustCompile(`^[0-9A-Za-z._-]{0,100}$`)
diff --git a/vendor/google.golang.org/appengine/timeout.go b/vendor/google.golang.org/appengine/timeout.go
new file mode 100644
index 0000000..05642a9
--- /dev/null
+++ b/vendor/google.golang.org/appengine/timeout.go
@@ -0,0 +1,20 @@
+// Copyright 2013 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package appengine
+
+import "golang.org/x/net/context"
+
+// IsTimeoutError reports whether err is a timeout error.
+func IsTimeoutError(err error) bool {
+	if err == context.DeadlineExceeded {
+		return true
+	}
+	if t, ok := err.(interface {
+		IsTimeout() bool
+	}); ok {
+		return t.IsTimeout()
+	}
+	return false
+}
diff --git a/vendor/google.golang.org/appengine/urlfetch/urlfetch.go b/vendor/google.golang.org/appengine/urlfetch/urlfetch.go
new file mode 100644
index 0000000..6ffe1e6
--- /dev/null
+++ b/vendor/google.golang.org/appengine/urlfetch/urlfetch.go
@@ -0,0 +1,210 @@
+// Copyright 2011 Google Inc. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+// Package urlfetch provides an http.RoundTripper implementation
+// for fetching URLs via App Engine's urlfetch service.
+package urlfetch // import "google.golang.org/appengine/urlfetch"
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"golang.org/x/net/context"
+
+	"google.golang.org/appengine/internal"
+	pb "google.golang.org/appengine/internal/urlfetch"
+)
+
+// Transport is an implementation of http.RoundTripper for
+// App Engine. Users should generally create an http.Client using
+// this transport and use the Client rather than using this transport
+// directly.
+type Transport struct {
+	Context context.Context
+
+	// Controls whether the application checks the validity of SSL certificates
+	// over HTTPS connections. A value of false (the default) instructs the
+	// application to send a request to the server only if the certificate is
+	// valid and signed by a trusted certificate authority (CA), and also
+	// includes a hostname that matches the certificate. A value of true
+	// instructs the application to perform no certificate validation.
+	AllowInvalidServerCertificate bool
+}
+
+// Verify statically that *Transport implements http.RoundTripper.
+var _ http.RoundTripper = (*Transport)(nil)
+
+// Client returns an *http.Client using a default urlfetch Transport. This
+// client will have the default deadline of 5 seconds, and will check the
+// validity of SSL certificates.
+//
+// Any deadline of the provided context will be used for requests through this client;
+// if the client does not have a deadline then a 5 second default is used.
+func Client(ctx context.Context) *http.Client {
+	return &http.Client{
+		Transport: &Transport{
+			Context: ctx,
+		},
+	}
+}
+
+type bodyReader struct {
+	content   []byte
+	truncated bool
+	closed    bool
+}
+
+// ErrTruncatedBody is the error returned after the final Read() from a
+// response's Body if the body has been truncated by App Engine's proxy.
+var ErrTruncatedBody = errors.New("urlfetch: truncated body")
+
+func statusCodeToText(code int) string {
+	if t := http.StatusText(code); t != "" {
+		return t
+	}
+	return strconv.Itoa(code)
+}
+
+func (br *bodyReader) Read(p []byte) (n int, err error) {
+	if br.closed {
+		if br.truncated {
+			return 0, ErrTruncatedBody
+		}
+		return 0, io.EOF
+	}
+	n = copy(p, br.content)
+	if n > 0 {
+		br.content = br.content[n:]
+		return
+	}
+	if br.truncated {
+		br.closed = true
+		return 0, ErrTruncatedBody
+	}
+	return 0, io.EOF
+}
+
+func (br *bodyReader) Close() error {
+	br.closed = true
+	br.content = nil
+	return nil
+}
+
+// A map of the URL Fetch-accepted methods that take a request body.
+var methodAcceptsRequestBody = map[string]bool{
+	"POST":  true,
+	"PUT":   true,
+	"PATCH": true,
+}
+
+// urlString returns a valid string given a URL. This function is necessary because
+// the String method of URL doesn't correctly handle URLs with non-empty Opaque values.
+// See http://code.google.com/p/go/issues/detail?id=4860.
+func urlString(u *url.URL) string {
+	if u.Opaque == "" || strings.HasPrefix(u.Opaque, "//") {
+		return u.String()
+	}
+	aux := *u
+	aux.Opaque = "//" + aux.Host + aux.Opaque
+	return aux.String()
+}
+
+// RoundTrip issues a single HTTP request and returns its response. Per the
+// http.RoundTripper interface, RoundTrip only returns an error if there
+// was an unsupported request or the URL Fetch proxy fails.
+// Note that HTTP response codes such as 5xx, 403, 404, etc are not
+// errors as far as the transport is concerned and will be returned
+// with err set to nil.
+func (t *Transport) RoundTrip(req *http.Request) (res *http.Response, err error) {
+	methNum, ok := pb.URLFetchRequest_RequestMethod_value[req.Method]
+	if !ok {
+		return nil, fmt.Errorf("urlfetch: unsupported HTTP method %q", req.Method)
+	}
+
+	method := pb.URLFetchRequest_RequestMethod(methNum)
+
+	freq := &pb.URLFetchRequest{
+		Method:                        &method,
+		Url:                           proto.String(urlString(req.URL)),
+		FollowRedirects:               proto.Bool(false), // http.Client's responsibility
+		MustValidateServerCertificate: proto.Bool(!t.AllowInvalidServerCertificate),
+	}
+	if deadline, ok := t.Context.Deadline(); ok {
+		freq.Deadline = proto.Float64(deadline.Sub(time.Now()).Seconds())
+	}
+
+	for k, vals := range req.Header {
+		for _, val := range vals {
+			freq.Header = append(freq.Header, &pb.URLFetchRequest_Header{
+				Key:   proto.String(k),
+				Value: proto.String(val),
+			})
+		}
+	}
+	if methodAcceptsRequestBody[req.Method] && req.Body != nil {
+		// Avoid a []byte copy if req.Body has a Bytes method.
+		switch b := req.Body.(type) {
+		case interface {
+			Bytes() []byte
+		}:
+			freq.Payload = b.Bytes()
+		default:
+			freq.Payload, err = ioutil.ReadAll(req.Body)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	fres := &pb.URLFetchResponse{}
+	if err := internal.Call(t.Context, "urlfetch", "Fetch", freq, fres); err != nil {
+		return nil, err
+	}
+
+	res = &http.Response{}
+	res.StatusCode = int(*fres.StatusCode)
+	res.Status = fmt.Sprintf("%d %s", res.StatusCode, statusCodeToText(res.StatusCode))
+	res.Header = make(http.Header)
+	res.Request = req
+
+	// Faked:
+	res.ProtoMajor = 1
+	res.ProtoMinor = 1
+	res.Proto = "HTTP/1.1"
+	res.Close = true
+
+	for _, h := range fres.Header {
+		hkey := http.CanonicalHeaderKey(*h.Key)
+		hval := *h.Value
+		if hkey == "Content-Length" {
+			// Will get filled in below for all but HEAD requests.
+			if req.Method == "HEAD" {
+				res.ContentLength, _ = strconv.ParseInt(hval, 10, 64)
+			}
+			continue
+		}
+		res.Header.Add(hkey, hval)
+	}
+
+	if req.Method != "HEAD" {
+		res.ContentLength = int64(len(fres.Content))
+	}
+
+	truncated := fres.GetContentWasTruncated()
+	res.Body = &bodyReader{content: fres.Content, truncated: truncated}
+	return
+}
+
+func init() {
+	internal.RegisterErrorCodeMap("urlfetch", pb.URLFetchServiceError_ErrorCode_name)
+	internal.RegisterTimeoutErrorCode("urlfetch", int32(pb.URLFetchServiceError_DEADLINE_EXCEEDED))
+}
diff --git a/vendor/google.golang.org/cloud/AUTHORS b/vendor/google.golang.org/cloud/AUTHORS
new file mode 100644
index 0000000..f92e5cf
--- /dev/null
+++ b/vendor/google.golang.org/cloud/AUTHORS
@@ -0,0 +1,14 @@
+# This is the official list of cloud authors for copyright purposes.
+# This file is distinct from the CONTRIBUTORS files.
+# See the latter for an explanation.
+
+# Names should be added to this file as:
+# Name or Organization <email address>
+# The email address is not required for organizations.
+
+Google Inc.
+Ingo Oeser <nightlyone@googlemail.com>
+Palm Stone Games, Inc.
+Paweł Knap <pawelknap88@gmail.com>
+Péter Szilágyi <peterke@gmail.com>
+Tyler Treat <ttreat31@gmail.com>
diff --git a/vendor/google.golang.org/cloud/CONTRIBUTING.md b/vendor/google.golang.org/cloud/CONTRIBUTING.md
new file mode 100644
index 0000000..135a1a1
--- /dev/null
+++ b/vendor/google.golang.org/cloud/CONTRIBUTING.md
@@ -0,0 +1,115 @@
+# Contributing
+
+1. Sign one of the contributor license agreements below.
+1. `go get golang.org/x/review/git-codereview` to install the code reviewing tool.
+1. Get the cloud package by running `go get -d google.golang.org/cloud`.
+    1. If you have already checked out the source, make sure that the remote git
+       origin is https://code.googlesource.com/gocloud:
+
+            git remote set-url origin https://code.googlesource.com/gocloud
+1. Make sure your auth is configured correctly by visiting
+   https://code.googlesource.com, clicking "Generate Password", and following
+   the directions.
+1. Make changes and create a change by running `git codereview change <name>`,
+provide a commit message, and use `git codereview mail` to create a Gerrit CL.
+1. Keep amending to the change and mail as your receive feedback.
+
+## Integration Tests
+
+In addition to the unit tests, you may run the integration test suite.
+
+To run the integrations tests, creating and configuration of a project in the
+Google Developers Console is required. Once you create a project, set the
+following environment variables to be able to run the against the actual APIs.
+
+- **GCLOUD_TESTS_GOLANG_PROJECT_ID**: Developers Console project's ID (e.g. bamboo-shift-455)
+- **GCLOUD_TESTS_GOLANG_KEY**: The path to the JSON key file.
+
+Create a storage bucket with the same name as the project ID set in **GCLOUD_TESTS_GOLANG_PROJECT_ID**.
+The storage integration test will create and delete some objects in this bucket.
+
+Install the [gcloud command-line tool][gcloudcli] to your machine and use it
+to create the indexes used in the datastore integration tests with indexes
+found in `datastore/testdata/index.yaml`:
+
+From the project's root directory:
+
+``` sh
+# Set the default project in your env
+$ gcloud config set project $GCLOUD_TESTS_GOLANG_PROJECT_ID
+
+# Authenticate the gcloud tool with your account
+$ gcloud auth login
+
+# Create the indexes
+$ gcloud preview datastore create-indexes datastore/testdata/index.yaml
+
+```
+
+Once you've set the environment variables, you can run the integration tests by
+running:
+
+``` sh
+$ go test -v google.golang.org/cloud/...
+```
+
+## Contributor License Agreements
+
+Before we can accept your pull requests you'll need to sign a Contributor
+License Agreement (CLA):
+
+- **If you are an individual writing original source code** and **you own the
+- intellectual property**, then you'll need to sign an [individual CLA][indvcla].
+- **If you work for a company that wants to allow you to contribute your work**,
+then you'll need to sign a [corporate CLA][corpcla].
+
+You can sign these electronically (just scroll to the bottom). After that,
+we'll be able to accept your pull requests.
+
+## Contributor Code of Conduct
+
+As contributors and maintainers of this project,
+and in the interest of fostering an open and welcoming community,
+we pledge to respect all people who contribute through reporting issues,
+posting feature requests, updating documentation,
+submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project
+a harassment-free experience for everyone,
+regardless of level of experience, gender, gender identity and expression,
+sexual orientation, disability, personal appearance,
+body size, race, ethnicity, age, religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery
+* Personal attacks
+* Trolling or insulting/derogatory comments
+* Public or private harassment
+* Publishing other's private information,
+such as physical or electronic
+addresses, without explicit permission
+* Other unethical or unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct.
+By adopting this Code of Conduct,
+project maintainers commit themselves to fairly and consistently
+applying these principles to every aspect of managing this project.
+Project maintainers who do not follow or enforce the Code of Conduct
+may be permanently removed from the project team.
+
+This code of conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior
+may be reported by opening an issue
+or contacting one or more of the project maintainers.
+
+This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.2.0,
+available at [http://contributor-covenant.org/version/1/2/0/](http://contributor-covenant.org/version/1/2/0/)
+
+[gcloudcli]: https://developers.google.com/cloud/sdk/gcloud/
+[indvcla]: https://developers.google.com/open-source/cla/individual
+[corpcla]: https://developers.google.com/open-source/cla/corporate
diff --git a/vendor/google.golang.org/cloud/CONTRIBUTORS b/vendor/google.golang.org/cloud/CONTRIBUTORS
new file mode 100644
index 0000000..27db791
--- /dev/null
+++ b/vendor/google.golang.org/cloud/CONTRIBUTORS
@@ -0,0 +1,29 @@
+# People who have agreed to one of the CLAs and can contribute patches.
+# The AUTHORS file lists the copyright holders; this file
+# lists people.  For example, Google employees are listed here
+# but not in AUTHORS, because Google holds the copyright.
+#
+# https://developers.google.com/open-source/cla/individual
+# https://developers.google.com/open-source/cla/corporate
+#
+# Names should be added to this file as:
+#     Name <email address>
+
+# Keep the list alphabetically sorted.
+
+Andrew Gerrand <adg@golang.org>
+Brad Fitzpatrick <bradfitz@golang.org>
+Burcu Dogan <jbd@google.com>
+Dave Day <djd@golang.org>
+David Sansome <me@davidsansome.com>
+David Symonds <dsymonds@golang.org>
+Glenn Lewis <gmlewis@google.com>
+Ingo Oeser <nightlyone@googlemail.com>
+Johan Euphrosine <proppy@google.com>
+Luna Duclos <luna.duclos@palmstonegames.com>
+Michael McGreevy <mcgreevy@golang.org>
+Omar Jarjur <ojarjur@google.com>
+Paweł Knap <pawelknap88@gmail.com>
+Péter Szilágyi <peterke@gmail.com>
+Toby Burress <kurin@google.com>
+Tyler Treat <ttreat31@gmail.com>
diff --git a/vendor/google.golang.org/cloud/README.md b/vendor/google.golang.org/cloud/README.md
new file mode 100644
index 0000000..13b7a0d
--- /dev/null
+++ b/vendor/google.golang.org/cloud/README.md
@@ -0,0 +1,186 @@
+# Google Cloud for Go
+
+[![Build Status](https://travis-ci.org/GoogleCloudPlatform/gcloud-golang.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/gcloud-golang)
+[![GoDoc](https://godoc.org/google.golang.org/cloud?status.svg)](https://godoc.org/google.golang.org/cloud)
+
+``` go
+import "google.golang.org/cloud"
+```
+
+**NOTE:** These packages are under development, and may occasionally make
+backwards-incompatible changes.
+
+**NOTE:** Github repo is a mirror of [https://code.googlesource.com/gocloud](https://code.googlesource.com/gocloud).
+
+Go packages for Google Cloud Platform services. Supported APIs are:
+
+Google API                     | Status       | Package
+-------------------------------|--------------|-----------------------------------------------------------
+[Datastore][cloud-datastore]   | beta         | [`google.golang.org/cloud/datastore`][cloud-datastore-ref]
+[Storage][cloud-storage]       | beta         | [`google.golang.org/cloud/storage`][cloud-storage-ref]
+[Pub/Sub][cloud-pubsub]        | experimental | [`google.golang.org/cloud/pubsub`][cloud-pubsub-ref]
+[BigTable][cloud-bigtable]     | stable       | [`google.golang.org/cloud/bigtable`][cloud-bigtable-ref]
+[BigQuery][cloud-bigquery]     | experimental | [`google.golang.org/cloud/bigquery`][cloud-bigquery-ref]
+[Logging][cloud-logging]       | experimental | [`google.golang.org/cloud/logging`][cloud-logging-ref]
+
+> **Experimental status**: the API is still being actively developed. As a
+> result, it might change in backward-incompatible ways and is not recommended
+> for production use.
+>
+> **Beta status**: the API is largely complete, but still has outstanding
+> features and bugs to be addressed. There may be minor backwards-incompatible
+> changes where necessary.
+>
+> **Stable status**: the API is mature and ready for production use. We will
+> continue addressing bugs and feature requests.
+
+Documentation and examples are available at
+https://godoc.org/google.golang.org/cloud
+
+## Authorization
+
+By default, each API will use [Google Application Default Credentials][default-creds]
+for authorization credentials used in calling the API endpoints. This will allow your
+application to run in many environments without requiring explicit configuration.
+
+Manually-configured authorization can be achieved using the
+[`golang.org/x/oauth2`](https://godoc.org/golang.org/x/oauth2) package to
+create an `oauth2.TokenSource`. This token source can be passed to the `NewClient`
+function for the relevant API using a
+[`cloud.WithTokenSource`](https://godoc.org/google.golang.org/cloud#WithTokenSource)
+option.
+
+## Google Cloud Datastore
+
+[Google Cloud Datastore][cloud-datastore] ([docs][cloud-datastore-docs]) is a fully-
+managed, schemaless database for storing non-relational data. Cloud Datastore
+automatically scales with your users and supports ACID transactions, high availability
+of reads and writes, strong consistency for reads and ancestor queries, and eventual
+consistency for all other queries.
+
+Follow the [activation instructions][cloud-datastore-activation] to use the Google
+Cloud Datastore API with your project.
+
+https://godoc.org/google.golang.org/cloud/datastore
+
+First create a `datastore.Client` to use throughout your application:
+
+```go
+client, err := datastore.NewClient(ctx, "my-project-id")
+if err != nil {
+	log.Fatalln(err)
+}
+```
+
+Then use that client to interact with the API:
+
+```go
+type Post struct {
+	Title       string
+	Body        string `datastore:",noindex"`
+	PublishedAt time.Time
+}
+keys := []*datastore.Key{
+	datastore.NewKey(ctx, "Post", "post1", 0, nil),
+	datastore.NewKey(ctx, "Post", "post2", 0, nil),
+}
+posts := []*Post{
+	{Title: "Post 1", Body: "...", PublishedAt: time.Now()},
+	{Title: "Post 2", Body: "...", PublishedAt: time.Now()},
+}
+if _, err := client.PutMulti(ctx, keys, posts); err != nil {
+	log.Fatal(err)
+}
+```
+
+## Google Cloud Storage
+
+[Google Cloud Storage][cloud-storage] ([docs][cloud-storage-docs]) allows you to store
+data on Google infrastructure with very high reliability, performance and availability,
+and can be used to distribute large data objects to users via direct download.
+
+https://godoc.org/google.golang.org/cloud/storage
+
+First create a `storage.Client` to use throughout your application:
+
+```go
+client, err := storage.NewClient(ctx)
+if err != nil {
+	log.Fatal(err)
+}
+```
+
+```go
+// Read the object1 from bucket.
+rc, err := client.Bucket("bucket").Object("object1").NewReader(ctx)
+if err != nil {
+	log.Fatal(err)
+}
+defer rc.Close()
+body, err := ioutil.ReadAll(rc)
+if err != nil {
+	log.Fatal(err)
+}
+```
+
+## Google Cloud Pub/Sub
+
+[Google Cloud Pub/Sub][cloud-pubsub] ([docs][cloud-pubsub-docs]) allows you to connect
+your services with reliable, many-to-many, asynchronous messaging hosted on Google's
+infrastructure. Cloud Pub/Sub automatically scales as you need it and provides a foundation
+for building your own robust, global services.
+
+https://godoc.org/google.golang.org/cloud/pubsub
+
+
+```go
+// Publish "hello world" on topic1.
+msgIDs, err := pubsub.Publish(ctx, "topic1", &pubsub.Message{
+	Data: []byte("hello world"),
+})
+if err != nil {
+	log.Println(err)
+}
+// Pull messages via subscription1.
+msgs, err := pubsub.Pull(ctx, "subscription1", 1)
+if err != nil {
+	log.Println(err)
+}
+```
+
+## Contributing
+
+Contributions are welcome. Please, see the
+[CONTRIBUTING](https://github.com/GoogleCloudPlatform/gcloud-golang/blob/master/CONTRIBUTING.md)
+document for details. We're using Gerrit for our code reviews. Please don't open pull
+requests against this repo, new pull requests will be automatically closed.
+
+Please note that this project is released with a Contributor Code of Conduct.
+By participating in this project you agree to abide by its terms.
+See [Contributor Code of Conduct](https://github.com/GoogleCloudPlatform/gcloud-golang/blob/master/CONTRIBUTING.md#contributor-code-of-conduct)
+for more information.
+
+[cloud-datastore]: https://cloud.google.com/datastore/
+[cloud-datastore-ref]: https://godoc.org/google.golang.org/cloud/datastore
+[cloud-datastore-docs]: https://cloud.google.com/datastore/docs
+[cloud-datastore-activation]: https://cloud.google.com/datastore/docs/activate
+
+[cloud-pubsub]: https://cloud.google.com/pubsub/
+[cloud-pubsub-ref]: https://godoc.org/google.golang.org/cloud/pubsub
+[cloud-pubsub-docs]: https://cloud.google.com/pubsub/docs
+
+[cloud-storage]: https://cloud.google.com/storage/
+[cloud-storage-ref]: https://godoc.org/google.golang.org/cloud/storage
+[cloud-storage-docs]: https://cloud.google.com/storage/docs/overview
+[cloud-storage-create-bucket]: https://cloud.google.com/storage/docs/cloud-console#_creatingbuckets
+
+[cloud-bigtable]: https://cloud.google.com/bigtable/
+[cloud-bigtable-ref]: https://godoc.org/google.golang.org/cloud/bigtable
+
+[cloud-bigquery]: https://cloud.google.com/bigquery/
+[cloud-bigquery-ref]: https://godoc.org/google.golang.org/cloud/bigquery
+
+[cloud-logging]: https://cloud.google.com/logging/
+[cloud-logging-ref]: https://godoc.org/google.golang.org/cloud/logging
+
+[default-creds]: https://developers.google.com/identity/protocols/application-default-credentials
diff --git a/vendor/google.golang.org/cloud/cloud.go b/vendor/google.golang.org/cloud/cloud.go
new file mode 100644
index 0000000..98be1f4
--- /dev/null
+++ b/vendor/google.golang.org/cloud/cloud.go
@@ -0,0 +1,56 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package cloud contains Google Cloud Platform APIs related types
+// and common functions.
+package cloud // import "google.golang.org/cloud"
+
+import (
+	"net/http"
+
+	"golang.org/x/net/context"
+	"google.golang.org/cloud/internal"
+)
+
+// NewContext returns a new context that uses the provided http.Client.
+// Provided http.Client is responsible to authorize and authenticate
+// the requests made to the Google Cloud APIs.
+// It mutates the client's original Transport to append the cloud
+// package's user-agent to the outgoing requests.
+// You can obtain the project ID from the Google Developers Console,
+// https://console.developers.google.com.
+func NewContext(projID string, c *http.Client) context.Context {
+	if c == nil {
+		panic("invalid nil *http.Client passed to NewContext")
+	}
+	return WithContext(context.Background(), projID, c)
+}
+
+// WithContext returns a new context in a similar way NewContext does,
+// but initiates the new context with the specified parent.
+func WithContext(parent context.Context, projID string, c *http.Client) context.Context {
+	// TODO(bradfitz): delete internal.Transport. It's too wrappy for what it does.
+	// Do User-Agent some other way.
+	if c == nil {
+		panic("invalid nil *http.Client passed to WithContext")
+	}
+	if _, ok := c.Transport.(*internal.Transport); !ok {
+		base := c.Transport
+		if base == nil {
+			base = http.DefaultTransport
+		}
+		c.Transport = &internal.Transport{Base: base}
+	}
+	return internal.WithContext(parent, projID, c)
+}
diff --git a/vendor/google.golang.org/cloud/internal/opts/option.go b/vendor/google.golang.org/cloud/internal/opts/option.go
new file mode 100644
index 0000000..844d310
--- /dev/null
+++ b/vendor/google.golang.org/cloud/internal/opts/option.go
@@ -0,0 +1,25 @@
+// Package opts holds the DialOpts struct, configurable by
+// cloud.ClientOptions to set up transports for cloud packages.
+//
+// This is a separate page to prevent cycles between the core
+// cloud packages.
+package opts
+
+import (
+	"net/http"
+
+	"golang.org/x/oauth2"
+	"google.golang.org/grpc"
+)
+
+type DialOpt struct {
+	Endpoint  string
+	Scopes    []string
+	UserAgent string
+
+	TokenSource oauth2.TokenSource
+
+	HTTPClient   *http.Client
+	GRPCClient   *grpc.ClientConn
+	GRPCDialOpts []grpc.DialOption
+}
diff --git a/vendor/google.golang.org/cloud/internal/transport/dial.go b/vendor/google.golang.org/cloud/internal/transport/dial.go
new file mode 100644
index 0000000..a0f8bd9
--- /dev/null
+++ b/vendor/google.golang.org/cloud/internal/transport/dial.go
@@ -0,0 +1,101 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package transport
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"golang.org/x/net/context"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/google"
+	"google.golang.org/cloud"
+	"google.golang.org/cloud/internal/opts"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/oauth"
+)
+
+// ErrHTTP is returned when on a non-200 HTTP response.
+type ErrHTTP struct {
+	StatusCode int
+	Body       []byte
+	err        error
+}
+
+func (e *ErrHTTP) Error() string {
+	if e.err == nil {
+		return fmt.Sprintf("error during call, http status code: %v %s", e.StatusCode, e.Body)
+	}
+	return e.err.Error()
+}
+
+// NewHTTPClient returns an HTTP client for use communicating with a Google cloud
+// service, configured with the given ClientOptions. It also returns the endpoint
+// for the service as specified in the options.
+func NewHTTPClient(ctx context.Context, opt ...cloud.ClientOption) (*http.Client, string, error) {
+	var o opts.DialOpt
+	for _, opt := range opt {
+		opt.Resolve(&o)
+	}
+	if o.GRPCClient != nil {
+		return nil, "", errors.New("unsupported GRPC base transport specified")
+	}
+	// TODO(djd): Wrap all http.Clients with appropriate internal version to add
+	// UserAgent header and prepend correct endpoint.
+	if o.HTTPClient != nil {
+		return o.HTTPClient, o.Endpoint, nil
+	}
+	if o.TokenSource == nil {
+		var err error
+		o.TokenSource, err = google.DefaultTokenSource(ctx, o.Scopes...)
+		if err != nil {
+			return nil, "", fmt.Errorf("google.DefaultTokenSource: %v", err)
+		}
+	}
+	return oauth2.NewClient(ctx, o.TokenSource), o.Endpoint, nil
+}
+
+// DialGRPC returns a GRPC connection for use communicating with a Google cloud
+// service, configured with the given ClientOptions.
+func DialGRPC(ctx context.Context, opt ...cloud.ClientOption) (*grpc.ClientConn, error) {
+	var o opts.DialOpt
+	for _, opt := range opt {
+		opt.Resolve(&o)
+	}
+	if o.HTTPClient != nil {
+		return nil, errors.New("unsupported HTTP base transport specified")
+	}
+	if o.GRPCClient != nil {
+		return o.GRPCClient, nil
+	}
+	if o.TokenSource == nil {
+		var err error
+		o.TokenSource, err = google.DefaultTokenSource(ctx, o.Scopes...)
+		if err != nil {
+			return nil, fmt.Errorf("google.DefaultTokenSource: %v", err)
+		}
+	}
+	grpcOpts := []grpc.DialOption{
+		grpc.WithPerRPCCredentials(oauth.TokenSource{o.TokenSource}),
+		grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, "")),
+	}
+	grpcOpts = append(grpcOpts, o.GRPCDialOpts...)
+	if o.UserAgent != "" {
+		grpcOpts = append(grpcOpts, grpc.WithUserAgent(o.UserAgent))
+	}
+	return grpc.Dial(o.Endpoint, grpcOpts...)
+}
diff --git a/vendor/google.golang.org/cloud/key.json.enc b/vendor/google.golang.org/cloud/key.json.enc
new file mode 100644
index 0000000..2f673a8
--- /dev/null
+++ b/vendor/google.golang.org/cloud/key.json.enc
diff --git a/vendor/google.golang.org/cloud/option.go b/vendor/google.golang.org/cloud/option.go
new file mode 100644
index 0000000..8a443b4
--- /dev/null
+++ b/vendor/google.golang.org/cloud/option.go
@@ -0,0 +1,114 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cloud
+
+import (
+	"net/http"
+
+	"golang.org/x/oauth2"
+	"google.golang.org/cloud/internal/opts"
+	"google.golang.org/grpc"
+)
+
+// ClientOption is used when construct clients for each cloud service.
+type ClientOption interface {
+	// Resolve configures the given DialOpts for this option.
+	Resolve(*opts.DialOpt)
+}
+
+// WithTokenSource returns a ClientOption that specifies an OAuth2 token
+// source to be used as the basis for authentication.
+func WithTokenSource(s oauth2.TokenSource) ClientOption {
+	return withTokenSource{s}
+}
+
+type withTokenSource struct{ ts oauth2.TokenSource }
+
+func (w withTokenSource) Resolve(o *opts.DialOpt) {
+	o.TokenSource = w.ts
+}
+
+// WithEndpoint returns a ClientOption that overrides the default endpoint
+// to be used for a service.
+func WithEndpoint(url string) ClientOption {
+	return withEndpoint(url)
+}
+
+type withEndpoint string
+
+func (w withEndpoint) Resolve(o *opts.DialOpt) {
+	o.Endpoint = string(w)
+}
+
+// WithScopes returns a ClientOption that overrides the default OAuth2 scopes
+// to be used for a service.
+func WithScopes(scope ...string) ClientOption {
+	return withScopes(scope)
+}
+
+type withScopes []string
+
+func (w withScopes) Resolve(o *opts.DialOpt) {
+	s := make([]string, len(w))
+	copy(s, w)
+	o.Scopes = s
+}
+
+// WithUserAgent returns a ClientOption that sets the User-Agent.
+func WithUserAgent(ua string) ClientOption {
+	return withUA(ua)
+}
+
+type withUA string
+
+func (w withUA) Resolve(o *opts.DialOpt) { o.UserAgent = string(w) }
+
+// WithBaseHTTP returns a ClientOption that specifies the HTTP client to
+// use as the basis of communications. This option may only be used with
+// services that support HTTP as their communication transport.
+func WithBaseHTTP(client *http.Client) ClientOption {
+	return withBaseHTTP{client}
+}
+
+type withBaseHTTP struct{ client *http.Client }
+
+func (w withBaseHTTP) Resolve(o *opts.DialOpt) {
+	o.HTTPClient = w.client
+}
+
+// WithBaseGRPC returns a ClientOption that specifies the gRPC client
+// connection to use as the basis of communications. This option many only be
+// used with services that support gRPC as their communication transport.
+func WithBaseGRPC(client *grpc.ClientConn) ClientOption {
+	return withBaseGRPC{client}
+}
+
+type withBaseGRPC struct{ client *grpc.ClientConn }
+
+func (w withBaseGRPC) Resolve(o *opts.DialOpt) {
+	o.GRPCClient = w.client
+}
+
+// WithGRPCDialOption returns a ClientOption that appends a new grpc.DialOption
+// to an underlying gRPC dial. It does not work with WithBaseGRPC.
+func WithGRPCDialOption(opt grpc.DialOption) ClientOption {
+	return withGRPCDialOption{opt}
+}
+
+type withGRPCDialOption struct{ opt grpc.DialOption }
+
+func (w withGRPCDialOption) Resolve(o *opts.DialOpt) {
+	o.GRPCDialOpts = append(o.GRPCDialOpts, w.opt)
+}
diff --git a/vendor/google.golang.org/cloud/storage/acl.go b/vendor/google.golang.org/cloud/storage/acl.go
new file mode 100644
index 0000000..1c7be32
--- /dev/null
+++ b/vendor/google.golang.org/cloud/storage/acl.go
@@ -0,0 +1,204 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package storage
+
+import (
+	"fmt"
+
+	"golang.org/x/net/context"
+	raw "google.golang.org/api/storage/v1"
+)
+
+// ACLRole is the level of access to grant.
+type ACLRole string
+
+const (
+	RoleOwner  ACLRole = "OWNER"
+	RoleReader ACLRole = "READER"
+)
+
+// ACLEntity refers to a user or group.
+// They are sometimes referred to as grantees.
+//
+// It could be in the form of:
+// "user-<userId>", "user-<email>", "group-<groupId>", "group-<email>",
+// "domain-<domain>" and "project-team-<projectId>".
+//
+// Or one of the predefined constants: AllUsers, AllAuthenticatedUsers.
+type ACLEntity string
+
+const (
+	AllUsers              ACLEntity = "allUsers"
+	AllAuthenticatedUsers ACLEntity = "allAuthenticatedUsers"
+)
+
+// ACLRule represents a grant for a role to an entity (user, group or team) for a Google Cloud Storage object or bucket.
+type ACLRule struct {
+	Entity ACLEntity
+	Role   ACLRole
+}
+
+// ACLHandle provides operations on an access control list for a Google Cloud Storage bucket or object.
+type ACLHandle struct {
+	c         *Client
+	bucket    string
+	object    string
+	isDefault bool
+}
+
+// Delete permanently deletes the ACL entry for the given entity.
+func (a *ACLHandle) Delete(ctx context.Context, entity ACLEntity) error {
+	if a.object != "" {
+		return a.objectDelete(ctx, entity)
+	}
+	if a.isDefault {
+		return a.bucketDefaultDelete(ctx, entity)
+	}
+	return a.bucketDelete(ctx, entity)
+}
+
+// Set sets the permission level for the given entity.
+func (a *ACLHandle) Set(ctx context.Context, entity ACLEntity, role ACLRole) error {
+	if a.object != "" {
+		return a.objectSet(ctx, entity, role)
+	}
+	if a.isDefault {
+		return a.bucketDefaultSet(ctx, entity, role)
+	}
+	return a.bucketSet(ctx, entity, role)
+}
+
+// List retrieves ACL entries.
+func (a *ACLHandle) List(ctx context.Context) ([]ACLRule, error) {
+	if a.object != "" {
+		return a.objectList(ctx)
+	}
+	if a.isDefault {
+		return a.bucketDefaultList(ctx)
+	}
+	return a.bucketList(ctx)
+}
+
+func (a *ACLHandle) bucketDefaultList(ctx context.Context) ([]ACLRule, error) {
+	acls, err := a.c.raw.DefaultObjectAccessControls.List(a.bucket).Context(ctx).Do()
+	if err != nil {
+		return nil, fmt.Errorf("storage: error listing default object ACL for bucket %q: %v", a.bucket, err)
+	}
+	r := make([]ACLRule, 0, len(acls.Items))
+	for _, v := range acls.Items {
+		if m, ok := v.(map[string]interface{}); ok {
+			entity, ok1 := m["entity"].(string)
+			role, ok2 := m["role"].(string)
+			if ok1 && ok2 {
+				r = append(r, ACLRule{Entity: ACLEntity(entity), Role: ACLRole(role)})
+			}
+		}
+	}
+	return r, nil
+}
+
+func (a *ACLHandle) bucketDefaultSet(ctx context.Context, entity ACLEntity, role ACLRole) error {
+	acl := &raw.ObjectAccessControl{
+		Bucket: a.bucket,
+		Entity: string(entity),
+		Role:   string(role),
+	}
+	_, err := a.c.raw.DefaultObjectAccessControls.Update(a.bucket, string(entity), acl).Context(ctx).Do()
+	if err != nil {
+		return fmt.Errorf("storage: error updating default ACL entry for bucket %q, entity %q: %v", a.bucket, entity, err)
+	}
+	return nil
+}
+
+func (a *ACLHandle) bucketDefaultDelete(ctx context.Context, entity ACLEntity) error {
+	err := a.c.raw.DefaultObjectAccessControls.Delete(a.bucket, string(entity)).Context(ctx).Do()
+	if err != nil {
+		return fmt.Errorf("storage: error deleting default ACL entry for bucket %q, entity %q: %v", a.bucket, entity, err)
+	}
+	return nil
+}
+
+func (a *ACLHandle) bucketList(ctx context.Context) ([]ACLRule, error) {
+	acls, err := a.c.raw.BucketAccessControls.List(a.bucket).Context(ctx).Do()
+	if err != nil {
+		return nil, fmt.Errorf("storage: error listing bucket ACL for bucket %q: %v", a.bucket, err)
+	}
+	r := make([]ACLRule, len(acls.Items))
+	for i, v := range acls.Items {
+		r[i].Entity = ACLEntity(v.Entity)
+		r[i].Role = ACLRole(v.Role)
+	}
+	return r, nil
+}
+
+func (a *ACLHandle) bucketSet(ctx context.Context, entity ACLEntity, role ACLRole) error {
+	acl := &raw.BucketAccessControl{
+		Bucket: a.bucket,
+		Entity: string(entity),
+		Role:   string(role),
+	}
+	_, err := a.c.raw.BucketAccessControls.Update(a.bucket, string(entity), acl).Context(ctx).Do()
+	if err != nil {
+		return fmt.Errorf("storage: error updating bucket ACL entry for bucket %q, entity %q: %v", a.bucket, entity, err)
+	}
+	return nil
+}
+
+func (a *ACLHandle) bucketDelete(ctx context.Context, entity ACLEntity) error {
+	err := a.c.raw.BucketAccessControls.Delete(a.bucket, string(entity)).Context(ctx).Do()
+	if err != nil {
+		return fmt.Errorf("storage: error deleting bucket ACL entry for bucket %q, entity %q: %v", a.bucket, entity, err)
+	}
+	return nil
+}
+
+func (a *ACLHandle) objectList(ctx context.Context) ([]ACLRule, error) {
+	acls, err := a.c.raw.ObjectAccessControls.List(a.bucket, a.object).Context(ctx).Do()
+	if err != nil {
+		return nil, fmt.Errorf("storage: error listing object ACL for bucket %q, file %q: %v", a.bucket, a.object, err)
+	}
+	r := make([]ACLRule, 0, len(acls.Items))
+	for _, v := range acls.Items {
+		if m, ok := v.(map[string]interface{}); ok {
+			entity, ok1 := m["entity"].(string)
+			role, ok2 := m["role"].(string)
+			if ok1 && ok2 {
+				r = append(r, ACLRule{Entity: ACLEntity(entity), Role: ACLRole(role)})
+			}
+		}
+	}
+	return r, nil
+}
+
+func (a *ACLHandle) objectSet(ctx context.Context, entity ACLEntity, role ACLRole) error {
+	acl := &raw.ObjectAccessControl{
+		Bucket: a.bucket,
+		Entity: string(entity),
+		Role:   string(role),
+	}
+	_, err := a.c.raw.ObjectAccessControls.Update(a.bucket, a.object, string(entity), acl).Context(ctx).Do()
+	if err != nil {
+		return fmt.Errorf("storage: error updating object ACL entry for bucket %q, file %q, entity %q: %v", a.bucket, a.object, entity, err)
+	}
+	return nil
+}
+
+func (a *ACLHandle) objectDelete(ctx context.Context, entity ACLEntity) error {
+	err := a.c.raw.ObjectAccessControls.Delete(a.bucket, a.object, string(entity)).Context(ctx).Do()
+	if err != nil {
+		return fmt.Errorf("storage: error deleting object ACL entry for bucket %q, file %q, entity %q: %v", a.bucket, a.object, entity, err)
+	}
+	return nil
+}
diff --git a/vendor/google.golang.org/cloud/storage/reader.go b/vendor/google.golang.org/cloud/storage/reader.go
new file mode 100644
index 0000000..9e21648
--- /dev/null
+++ b/vendor/google.golang.org/cloud/storage/reader.go
@@ -0,0 +1,55 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package storage
+
+import (
+	"io"
+)
+
+// Reader reads a Cloud Storage object.
+type Reader struct {
+	body         io.ReadCloser
+	remain, size int64
+	contentType  string
+}
+
+func (r *Reader) Close() error {
+	return r.body.Close()
+}
+
+func (r *Reader) Read(p []byte) (int, error) {
+	n, err := r.body.Read(p)
+	if r.remain != -1 {
+		r.remain -= int64(n)
+	}
+	return n, err
+}
+
+// Size returns the size of the object in bytes.
+// The returned value is always the same and is not affected by
+// calls to Read or Close.
+func (r *Reader) Size() int64 {
+	return r.size
+}
+
+// Remain returns the number of bytes left to read, or -1 if unknown.
+func (r *Reader) Remain() int64 {
+	return r.remain
+}
+
+// ContentType returns the content type of the object.
+func (r *Reader) ContentType() string {
+	return r.contentType
+}
diff --git a/vendor/google.golang.org/cloud/storage/storage.go b/vendor/google.golang.org/cloud/storage/storage.go
new file mode 100644
index 0000000..75f0e55
--- /dev/null
+++ b/vendor/google.golang.org/cloud/storage/storage.go
@@ -0,0 +1,1026 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package storage contains a Google Cloud Storage client.
+//
+// This package is experimental and may make backwards-incompatible changes.
+package storage // import "google.golang.org/cloud/storage"
+
+import (
+	"crypto"
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+	"unicode/utf8"
+
+	"google.golang.org/cloud"
+	"google.golang.org/cloud/internal/transport"
+
+	"golang.org/x/net/context"
+	"google.golang.org/api/googleapi"
+	raw "google.golang.org/api/storage/v1"
+)
+
+var (
+	ErrBucketNotExist = errors.New("storage: bucket doesn't exist")
+	ErrObjectNotExist = errors.New("storage: object doesn't exist")
+)
+
+const userAgent = "gcloud-golang-storage/20151204"
+
+const (
+	// ScopeFullControl grants permissions to manage your
+	// data and permissions in Google Cloud Storage.
+	ScopeFullControl = raw.DevstorageFullControlScope
+
+	// ScopeReadOnly grants permissions to
+	// view your data in Google Cloud Storage.
+	ScopeReadOnly = raw.DevstorageReadOnlyScope
+
+	// ScopeReadWrite grants permissions to manage your
+	// data in Google Cloud Storage.
+	ScopeReadWrite = raw.DevstorageReadWriteScope
+)
+
+// AdminClient is a client type for performing admin operations on a project's
+// buckets.
+type AdminClient struct {
+	hc        *http.Client
+	raw       *raw.Service
+	projectID string
+}
+
+// NewAdminClient creates a new AdminClient for a given project.
+func NewAdminClient(ctx context.Context, projectID string, opts ...cloud.ClientOption) (*AdminClient, error) {
+	c, err := NewClient(ctx, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return &AdminClient{
+		hc:        c.hc,
+		raw:       c.raw,
+		projectID: projectID,
+	}, nil
+}
+
+// Close closes the AdminClient.
+func (c *AdminClient) Close() error {
+	c.hc = nil
+	return nil
+}
+
+// Create creates a Bucket in the project.
+// If attrs is nil the API defaults will be used.
+func (c *AdminClient) CreateBucket(ctx context.Context, bucketName string, attrs *BucketAttrs) error {
+	var bkt *raw.Bucket
+	if attrs != nil {
+		bkt = attrs.toRawBucket()
+	} else {
+		bkt = &raw.Bucket{}
+	}
+	bkt.Name = bucketName
+	req := c.raw.Buckets.Insert(c.projectID, bkt)
+	_, err := req.Context(ctx).Do()
+	return err
+}
+
+// Delete deletes a Bucket in the project.
+func (c *AdminClient) DeleteBucket(ctx context.Context, bucketName string) error {
+	req := c.raw.Buckets.Delete(bucketName)
+	return req.Context(ctx).Do()
+}
+
+// Client is a client for interacting with Google Cloud Storage.
+type Client struct {
+	hc  *http.Client
+	raw *raw.Service
+}
+
+// NewClient creates a new Google Cloud Storage client.
+// The default scope is ScopeFullControl. To use a different scope, like ScopeReadOnly, use cloud.WithScopes.
+func NewClient(ctx context.Context, opts ...cloud.ClientOption) (*Client, error) {
+	o := []cloud.ClientOption{
+		cloud.WithScopes(ScopeFullControl),
+		cloud.WithUserAgent(userAgent),
+	}
+	opts = append(o, opts...)
+	hc, _, err := transport.NewHTTPClient(ctx, opts...)
+	if err != nil {
+		return nil, fmt.Errorf("dialing: %v", err)
+	}
+	rawService, err := raw.New(hc)
+	if err != nil {
+		return nil, fmt.Errorf("storage client: %v", err)
+	}
+	return &Client{
+		hc:  hc,
+		raw: rawService,
+	}, nil
+}
+
+// Close closes the Client.
+func (c *Client) Close() error {
+	c.hc = nil
+	return nil
+}
+
+// BucketHandle provides operations on a Google Cloud Storage bucket.
+// Use Client.Bucket to get a handle.
+type BucketHandle struct {
+	acl              *ACLHandle
+	defaultObjectACL *ACLHandle
+
+	c    *Client
+	name string
+}
+
+// Bucket returns a BucketHandle, which provides operations on the named bucket.
+// This call does not perform any network operations.
+//
+// name must contain only lowercase letters, numbers, dashes, underscores, and
+// dots. The full specification for valid bucket names can be found at:
+//   https://cloud.google.com/storage/docs/bucket-naming
+func (c *Client) Bucket(name string) *BucketHandle {
+	return &BucketHandle{
+		c:    c,
+		name: name,
+		acl: &ACLHandle{
+			c:      c,
+			bucket: name,
+		},
+		defaultObjectACL: &ACLHandle{
+			c:         c,
+			bucket:    name,
+			isDefault: true,
+		},
+	}
+}
+
+// ACL returns an ACLHandle, which provides access to the bucket's access control list.
+// This controls who can list, create or overwrite the objects in a bucket.
+// This call does not perform any network operations.
+func (c *BucketHandle) ACL() *ACLHandle {
+	return c.acl
+}
+
+// DefaultObjectACL returns an ACLHandle, which provides access to the bucket's default object ACLs.
+// These ACLs are applied to newly created objects in this bucket that do not have a defined ACL.
+// This call does not perform any network operations.
+func (c *BucketHandle) DefaultObjectACL() *ACLHandle {
+	return c.defaultObjectACL
+}
+
+// Object returns an ObjectHandle, which provides operations on the named object.
+// This call does not perform any network operations.
+//
+// name must consist entirely of valid UTF-8-encoded runes. The full specification
+// for valid object names can be found at:
+//   https://cloud.google.com/storage/docs/bucket-naming
+func (b *BucketHandle) Object(name string) *ObjectHandle {
+	return &ObjectHandle{
+		c:      b.c,
+		bucket: b.name,
+		object: name,
+		acl: &ACLHandle{
+			c:      b.c,
+			bucket: b.name,
+			object: name,
+		},
+	}
+}
+
+// TODO(jbd): Add storage.buckets.list.
+// TODO(jbd): Add storage.buckets.update.
+
+// TODO(jbd): Add storage.objects.watch.
+
+// Attrs returns the metadata for the bucket.
+func (b *BucketHandle) Attrs(ctx context.Context) (*BucketAttrs, error) {
+	resp, err := b.c.raw.Buckets.Get(b.name).Projection("full").Context(ctx).Do()
+	if e, ok := err.(*googleapi.Error); ok && e.Code == http.StatusNotFound {
+		return nil, ErrBucketNotExist
+	}
+	if err != nil {
+		return nil, err
+	}
+	return newBucket(resp), nil
+}
+
+// List lists objects from the bucket. You can specify a query
+// to filter the results. If q is nil, no filtering is applied.
+func (b *BucketHandle) List(ctx context.Context, q *Query) (*ObjectList, error) {
+	req := b.c.raw.Objects.List(b.name)
+	req.Projection("full")
+	if q != nil {
+		req.Delimiter(q.Delimiter)
+		req.Prefix(q.Prefix)
+		req.Versions(q.Versions)
+		req.PageToken(q.Cursor)
+		if q.MaxResults > 0 {
+			req.MaxResults(int64(q.MaxResults))
+		}
+	}
+	resp, err := req.Context(ctx).Do()
+	if err != nil {
+		return nil, err
+	}
+	objects := &ObjectList{
+		Results:  make([]*ObjectAttrs, len(resp.Items)),
+		Prefixes: make([]string, len(resp.Prefixes)),
+	}
+	for i, item := range resp.Items {
+		objects.Results[i] = newObject(item)
+	}
+	for i, prefix := range resp.Prefixes {
+		objects.Prefixes[i] = prefix
+	}
+	if resp.NextPageToken != "" {
+		next := Query{}
+		if q != nil {
+			// keep the other filtering
+			// criteria if there is a query
+			next = *q
+		}
+		next.Cursor = resp.NextPageToken
+		objects.Next = &next
+	}
+	return objects, nil
+}
+
+// SignedURLOptions allows you to restrict the access to the signed URL.
+type SignedURLOptions struct {
+	// GoogleAccessID represents the authorizer of the signed URL generation.
+	// It is typically the Google service account client email address from
+	// the Google Developers Console in the form of "xxx@developer.gserviceaccount.com".
+	// Required.
+	GoogleAccessID string
+
+	// PrivateKey is the Google service account private key. It is obtainable
+	// from the Google Developers Console.
+	// At https://console.developers.google.com/project/<your-project-id>/apiui/credential,
+	// create a service account client ID or reuse one of your existing service account
+	// credentials. Click on the "Generate new P12 key" to generate and download
+	// a new private key. Once you download the P12 file, use the following command
+	// to convert it into a PEM file.
+	//
+	//    $ openssl pkcs12 -in key.p12 -passin pass:notasecret -out key.pem -nodes
+	//
+	// Provide the contents of the PEM file as a byte slice.
+	// Required.
+	PrivateKey []byte
+
+	// Method is the HTTP method to be used with the signed URL.
+	// Signed URLs can be used with GET, HEAD, PUT, and DELETE requests.
+	// Required.
+	Method string
+
+	// Expires is the expiration time on the signed URL. It must be
+	// a datetime in the future.
+	// Required.
+	Expires time.Time
+
+	// ContentType is the content type header the client must provide
+	// to use the generated signed URL.
+	// Optional.
+	ContentType string
+
+	// Headers is a list of extention headers the client must provide
+	// in order to use the generated signed URL.
+	// Optional.
+	Headers []string
+
+	// MD5 is the base64 encoded MD5 checksum of the file.
+	// If provided, the client should provide the exact value on the request
+	// header in order to use the signed URL.
+	// Optional.
+	MD5 []byte
+}
+
+// SignedURL returns a URL for the specified object. Signed URLs allow
+// the users access to a restricted resource for a limited time without having a
+// Google account or signing in. For more information about the signed
+// URLs, see https://cloud.google.com/storage/docs/accesscontrol#Signed-URLs.
+func SignedURL(bucket, name string, opts *SignedURLOptions) (string, error) {
+	if opts == nil {
+		return "", errors.New("storage: missing required SignedURLOptions")
+	}
+	if opts.GoogleAccessID == "" || opts.PrivateKey == nil {
+		return "", errors.New("storage: missing required credentials to generate a signed URL")
+	}
+	if opts.Method == "" {
+		return "", errors.New("storage: missing required method option")
+	}
+	if opts.Expires.IsZero() {
+		return "", errors.New("storage: missing required expires option")
+	}
+	key, err := parseKey(opts.PrivateKey)
+	if err != nil {
+		return "", err
+	}
+	u := &url.URL{
+		Path: fmt.Sprintf("/%s/%s", bucket, name),
+	}
+	h := sha256.New()
+	fmt.Fprintf(h, "%s\n", opts.Method)
+	fmt.Fprintf(h, "%s\n", opts.MD5)
+	fmt.Fprintf(h, "%s\n", opts.ContentType)
+	fmt.Fprintf(h, "%d\n", opts.Expires.Unix())
+	fmt.Fprintf(h, "%s", strings.Join(opts.Headers, "\n"))
+	fmt.Fprintf(h, "%s", u.String())
+	b, err := rsa.SignPKCS1v15(
+		rand.Reader,
+		key,
+		crypto.SHA256,
+		h.Sum(nil),
+	)
+	if err != nil {
+		return "", err
+	}
+	encoded := base64.StdEncoding.EncodeToString(b)
+	u.Scheme = "https"
+	u.Host = "storage.googleapis.com"
+	q := u.Query()
+	q.Set("GoogleAccessId", opts.GoogleAccessID)
+	q.Set("Expires", fmt.Sprintf("%d", opts.Expires.Unix()))
+	q.Set("Signature", string(encoded))
+	u.RawQuery = q.Encode()
+	return u.String(), nil
+}
+
+// ObjectHandle provides operations on an object in a Google Cloud Storage bucket.
+// Use BucketHandle.Object to get a handle.
+type ObjectHandle struct {
+	c      *Client
+	bucket string
+	object string
+
+	acl   *ACLHandle
+	conds []Condition
+}
+
+// ACL provides access to the object's access control list.
+// This controls who can read and write this object.
+// This call does not perform any network operations.
+func (o *ObjectHandle) ACL() *ACLHandle {
+	return o.acl
+}
+
+// WithConditions returns a copy of o using the provided conditions.
+func (o *ObjectHandle) WithConditions(conds ...Condition) *ObjectHandle {
+	o2 := *o
+	o2.conds = conds
+	return &o2
+}
+
+// Attrs returns meta information about the object.
+// ErrObjectNotExist will be returned if the object is not found.
+func (o *ObjectHandle) Attrs(ctx context.Context) (*ObjectAttrs, error) {
+	if !utf8.ValidString(o.object) {
+		return nil, fmt.Errorf("storage: object name %q is not valid UTF-8", o.object)
+	}
+	call := o.c.raw.Objects.Get(o.bucket, o.object).Projection("full").Context(ctx)
+	if err := applyConds("Attrs", o.conds, call); err != nil {
+		return nil, err
+	}
+	obj, err := call.Do()
+	if e, ok := err.(*googleapi.Error); ok && e.Code == http.StatusNotFound {
+		return nil, ErrObjectNotExist
+	}
+	if err != nil {
+		return nil, err
+	}
+	return newObject(obj), nil
+}
+
+// Update updates an object with the provided attributes.
+// All zero-value attributes are ignored.
+// ErrObjectNotExist will be returned if the object is not found.
+func (o *ObjectHandle) Update(ctx context.Context, attrs ObjectAttrs) (*ObjectAttrs, error) {
+	if !utf8.ValidString(o.object) {
+		return nil, fmt.Errorf("storage: object name %q is not valid UTF-8", o.object)
+	}
+	call := o.c.raw.Objects.Patch(o.bucket, o.object, attrs.toRawObject(o.bucket)).Projection("full").Context(ctx)
+	if err := applyConds("Update", o.conds, call); err != nil {
+		return nil, err
+	}
+	obj, err := call.Do()
+	if e, ok := err.(*googleapi.Error); ok && e.Code == http.StatusNotFound {
+		return nil, ErrObjectNotExist
+	}
+	if err != nil {
+		return nil, err
+	}
+	return newObject(obj), nil
+}
+
+// Delete deletes the single specified object.
+func (o *ObjectHandle) Delete(ctx context.Context) error {
+	if !utf8.ValidString(o.object) {
+		return fmt.Errorf("storage: object name %q is not valid UTF-8", o.object)
+	}
+	call := o.c.raw.Objects.Delete(o.bucket, o.object).Context(ctx)
+	if err := applyConds("Delete", o.conds, call); err != nil {
+		return err
+	}
+	err := call.Do()
+	switch e := err.(type) {
+	case nil:
+		return nil
+	case *googleapi.Error:
+		if e.Code == http.StatusNotFound {
+			return ErrObjectNotExist
+		}
+	}
+	return err
+}
+
+// CopyTo copies the object to the given dst.
+// The copied object's attributes are overwritten by attrs if non-nil.
+func (o *ObjectHandle) CopyTo(ctx context.Context, dst *ObjectHandle, attrs *ObjectAttrs) (*ObjectAttrs, error) {
+	// TODO(djd): move bucket/object name validation to a single helper func.
+	if o.bucket == "" || dst.bucket == "" {
+		return nil, errors.New("storage: the source and destination bucket names must both be non-empty")
+	}
+	if o.object == "" || dst.object == "" {
+		return nil, errors.New("storage: the source and destination object names must both be non-empty")
+	}
+	if !utf8.ValidString(o.object) {
+		return nil, fmt.Errorf("storage: object name %q is not valid UTF-8", o.object)
+	}
+	if !utf8.ValidString(dst.object) {
+		return nil, fmt.Errorf("storage: dst name %q is not valid UTF-8", dst.object)
+	}
+	var rawObject *raw.Object
+	if attrs != nil {
+		attrs.Name = dst.object
+		if attrs.ContentType == "" {
+			return nil, errors.New("storage: attrs.ContentType must be non-empty")
+		}
+		rawObject = attrs.toRawObject(dst.bucket)
+	}
+	call := o.c.raw.Objects.Copy(o.bucket, o.object, dst.bucket, dst.object, rawObject).Projection("full").Context(ctx)
+	if err := applyConds("CopyTo destination", dst.conds, call); err != nil {
+		return nil, err
+	}
+	if err := applyConds("CopyTo source", toSourceConds(o.conds), call); err != nil {
+		return nil, err
+	}
+	obj, err := call.Do()
+	if err != nil {
+		return nil, err
+	}
+	return newObject(obj), nil
+}
+
+// NewReader creates a new Reader to read the contents of the
+// object.
+// ErrObjectNotExist will be returned if the object is not found.
+func (o *ObjectHandle) NewReader(ctx context.Context) (*Reader, error) {
+	return o.NewRangeReader(ctx, 0, -1)
+}
+
+// NewRangeReader reads part of an object, reading at most length bytes
+// starting at the given offset.  If length is negative, the object is read
+// until the end.
+func (o *ObjectHandle) NewRangeReader(ctx context.Context, offset, length int64) (*Reader, error) {
+	if !utf8.ValidString(o.object) {
+		return nil, fmt.Errorf("storage: object name %q is not valid UTF-8", o.object)
+	}
+	if offset < 0 {
+		return nil, fmt.Errorf("storage: invalid offset %d < 0", offset)
+	}
+	u := &url.URL{
+		Scheme: "https",
+		Host:   "storage.googleapis.com",
+		Path:   fmt.Sprintf("/%s/%s", o.bucket, o.object),
+	}
+	verb := "GET"
+	if length == 0 {
+		verb = "HEAD"
+	}
+	req, err := http.NewRequest(verb, u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+	if err := applyConds("NewReader", o.conds, objectsGetCall{req}); err != nil {
+		return nil, err
+	}
+	if length < 0 && offset > 0 {
+		req.Header.Set("Range", fmt.Sprintf("bytes=%d-", offset))
+	} else if length > 0 {
+		req.Header.Set("Range", fmt.Sprintf("bytes=%d-%d", offset, offset+length-1))
+	}
+	res, err := o.c.hc.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	if res.StatusCode == http.StatusNotFound {
+		res.Body.Close()
+		return nil, ErrObjectNotExist
+	}
+	if res.StatusCode < 200 || res.StatusCode > 299 {
+		res.Body.Close()
+		return nil, fmt.Errorf("storage: can't read object %v/%v, status code: %v", o.bucket, o.object, res.Status)
+	}
+	if offset > 0 && length != 0 && res.StatusCode != http.StatusPartialContent {
+		res.Body.Close()
+		return nil, errors.New("storage: partial request not satisfied")
+	}
+	clHeader := res.Header.Get("X-Goog-Stored-Content-Length")
+	cl, err := strconv.ParseInt(clHeader, 10, 64)
+	if err != nil {
+		return nil, fmt.Errorf("storage: can't parse content length %q: %v", clHeader, err)
+	}
+	remain := res.ContentLength
+	body := res.Body
+	if length == 0 {
+		remain = 0
+		body.Close()
+		body = emptyBody
+	}
+	return &Reader{
+		body:        body,
+		size:        cl,
+		remain:      remain,
+		contentType: res.Header.Get("Content-Type"),
+	}, nil
+}
+
+var emptyBody = ioutil.NopCloser(strings.NewReader(""))
+
+// NewWriter returns a storage Writer that writes to the GCS object
+// associated with this ObjectHandle.
+//
+// A new object will be created if an object with this name already exists.
+// Otherwise any previous object with the same name will be replaced.
+// The object will not be available (and any previous object will remain)
+// until Close has been called.
+//
+// Attributes can be set on the object by modifying the returned Writer's
+// ObjectAttrs field before the first call to Write. If no ContentType
+// attribute is specified, the content type will be automatically sniffed
+// using net/http.DetectContentType.
+//
+// It is the caller's responsibility to call Close when writing is done.
+func (o *ObjectHandle) NewWriter(ctx context.Context) *Writer {
+	return &Writer{
+		ctx:         ctx,
+		o:           o,
+		donec:       make(chan struct{}),
+		ObjectAttrs: ObjectAttrs{Name: o.object},
+	}
+}
+
+// parseKey converts the binary contents of a private key file
+// to an *rsa.PrivateKey. It detects whether the private key is in a
+// PEM container or not. If so, it extracts the the private key
+// from PEM container before conversion. It only supports PEM
+// containers with no passphrase.
+func parseKey(key []byte) (*rsa.PrivateKey, error) {
+	if block, _ := pem.Decode(key); block != nil {
+		key = block.Bytes
+	}
+	parsedKey, err := x509.ParsePKCS8PrivateKey(key)
+	if err != nil {
+		parsedKey, err = x509.ParsePKCS1PrivateKey(key)
+		if err != nil {
+			return nil, err
+		}
+	}
+	parsed, ok := parsedKey.(*rsa.PrivateKey)
+	if !ok {
+		return nil, errors.New("oauth2: private key is invalid")
+	}
+	return parsed, nil
+}
+
+// BucketAttrs represents the metadata for a Google Cloud Storage bucket.
+type BucketAttrs struct {
+	// Name is the name of the bucket.
+	Name string
+
+	// ACL is the list of access control rules on the bucket.
+	ACL []ACLRule
+
+	// DefaultObjectACL is the list of access controls to
+	// apply to new objects when no object ACL is provided.
+	DefaultObjectACL []ACLRule
+
+	// Location is the location of the bucket. It defaults to "US".
+	Location string
+
+	// MetaGeneration is the metadata generation of the bucket.
+	MetaGeneration int64
+
+	// StorageClass is the storage class of the bucket. This defines
+	// how objects in the bucket are stored and determines the SLA
+	// and the cost of storage. Typical values are "STANDARD" and
+	// "DURABLE_REDUCED_AVAILABILITY". Defaults to "STANDARD".
+	StorageClass string
+
+	// Created is the creation time of the bucket.
+	Created time.Time
+}
+
+func newBucket(b *raw.Bucket) *BucketAttrs {
+	if b == nil {
+		return nil
+	}
+	bucket := &BucketAttrs{
+		Name:           b.Name,
+		Location:       b.Location,
+		MetaGeneration: b.Metageneration,
+		StorageClass:   b.StorageClass,
+		Created:        convertTime(b.TimeCreated),
+	}
+	acl := make([]ACLRule, len(b.Acl))
+	for i, rule := range b.Acl {
+		acl[i] = ACLRule{
+			Entity: ACLEntity(rule.Entity),
+			Role:   ACLRole(rule.Role),
+		}
+	}
+	bucket.ACL = acl
+	objACL := make([]ACLRule, len(b.DefaultObjectAcl))
+	for i, rule := range b.DefaultObjectAcl {
+		objACL[i] = ACLRule{
+			Entity: ACLEntity(rule.Entity),
+			Role:   ACLRole(rule.Role),
+		}
+	}
+	bucket.DefaultObjectACL = objACL
+	return bucket
+}
+
+func toRawObjectACL(oldACL []ACLRule) []*raw.ObjectAccessControl {
+	var acl []*raw.ObjectAccessControl
+	if len(oldACL) > 0 {
+		acl = make([]*raw.ObjectAccessControl, len(oldACL))
+		for i, rule := range oldACL {
+			acl[i] = &raw.ObjectAccessControl{
+				Entity: string(rule.Entity),
+				Role:   string(rule.Role),
+			}
+		}
+	}
+	return acl
+}
+
+// toRawBucket copies the editable attribute from b to the raw library's Bucket type.
+func (b *BucketAttrs) toRawBucket() *raw.Bucket {
+	var acl []*raw.BucketAccessControl
+	if len(b.ACL) > 0 {
+		acl = make([]*raw.BucketAccessControl, len(b.ACL))
+		for i, rule := range b.ACL {
+			acl[i] = &raw.BucketAccessControl{
+				Entity: string(rule.Entity),
+				Role:   string(rule.Role),
+			}
+		}
+	}
+	dACL := toRawObjectACL(b.DefaultObjectACL)
+	return &raw.Bucket{
+		Name:             b.Name,
+		DefaultObjectAcl: dACL,
+		Location:         b.Location,
+		StorageClass:     b.StorageClass,
+		Acl:              acl,
+	}
+}
+
+// toRawObject copies the editable attributes from o to the raw library's Object type.
+func (o ObjectAttrs) toRawObject(bucket string) *raw.Object {
+	acl := toRawObjectACL(o.ACL)
+	return &raw.Object{
+		Bucket:             bucket,
+		Name:               o.Name,
+		ContentType:        o.ContentType,
+		ContentEncoding:    o.ContentEncoding,
+		ContentLanguage:    o.ContentLanguage,
+		CacheControl:       o.CacheControl,
+		ContentDisposition: o.ContentDisposition,
+		Acl:                acl,
+		Metadata:           o.Metadata,
+	}
+}
+
+// ObjectAttrs represents the metadata for a Google Cloud Storage (GCS) object.
+type ObjectAttrs struct {
+	// Bucket is the name of the bucket containing this GCS object.
+	// This field is read-only.
+	Bucket string
+
+	// Name is the name of the object within the bucket.
+	// This field is read-only.
+	Name string
+
+	// ContentType is the MIME type of the object's content.
+	ContentType string
+
+	// ContentLanguage is the content language of the object's content.
+	ContentLanguage string
+
+	// CacheControl is the Cache-Control header to be sent in the response
+	// headers when serving the object data.
+	CacheControl string
+
+	// ACL is the list of access control rules for the object.
+	ACL []ACLRule
+
+	// Owner is the owner of the object. This field is read-only.
+	//
+	// If non-zero, it is in the form of "user-<userId>".
+	Owner string
+
+	// Size is the length of the object's content. This field is read-only.
+	Size int64
+
+	// ContentEncoding is the encoding of the object's content.
+	ContentEncoding string
+
+	// ContentDisposition is the optional Content-Disposition header of the object
+	// sent in the response headers.
+	ContentDisposition string
+
+	// MD5 is the MD5 hash of the object's content. This field is read-only.
+	MD5 []byte
+
+	// CRC32C is the CRC32 checksum of the object's content using
+	// the Castagnoli93 polynomial. This field is read-only.
+	CRC32C uint32
+
+	// MediaLink is an URL to the object's content. This field is read-only.
+	MediaLink string
+
+	// Metadata represents user-provided metadata, in key/value pairs.
+	// It can be nil if no metadata is provided.
+	Metadata map[string]string
+
+	// Generation is the generation number of the object's content.
+	// This field is read-only.
+	Generation int64
+
+	// MetaGeneration is the version of the metadata for this
+	// object at this generation. This field is used for preconditions
+	// and for detecting changes in metadata. A metageneration number
+	// is only meaningful in the context of a particular generation
+	// of a particular object. This field is read-only.
+	MetaGeneration int64
+
+	// StorageClass is the storage class of the bucket.
+	// This value defines how objects in the bucket are stored and
+	// determines the SLA and the cost of storage. Typical values are
+	// "STANDARD" and "DURABLE_REDUCED_AVAILABILITY".
+	// It defaults to "STANDARD". This field is read-only.
+	StorageClass string
+
+	// Created is the time the object was created. This field is read-only.
+	Created time.Time
+
+	// Deleted is the time the object was deleted.
+	// If not deleted, it is the zero value. This field is read-only.
+	Deleted time.Time
+
+	// Updated is the creation or modification time of the object.
+	// For buckets with versioning enabled, changing an object's
+	// metadata does not change this property. This field is read-only.
+	Updated time.Time
+}
+
+// convertTime converts a time in RFC3339 format to time.Time.
+// If any error occurs in parsing, the zero-value time.Time is silently returned.
+func convertTime(t string) time.Time {
+	var r time.Time
+	if t != "" {
+		r, _ = time.Parse(time.RFC3339, t)
+	}
+	return r
+}
+
+func newObject(o *raw.Object) *ObjectAttrs {
+	if o == nil {
+		return nil
+	}
+	acl := make([]ACLRule, len(o.Acl))
+	for i, rule := range o.Acl {
+		acl[i] = ACLRule{
+			Entity: ACLEntity(rule.Entity),
+			Role:   ACLRole(rule.Role),
+		}
+	}
+	owner := ""
+	if o.Owner != nil {
+		owner = o.Owner.Entity
+	}
+	md5, _ := base64.StdEncoding.DecodeString(o.Md5Hash)
+	var crc32c uint32
+	d, err := base64.StdEncoding.DecodeString(o.Crc32c)
+	if err == nil && len(d) == 4 {
+		crc32c = uint32(d[0])<<24 + uint32(d[1])<<16 + uint32(d[2])<<8 + uint32(d[3])
+	}
+	return &ObjectAttrs{
+		Bucket:          o.Bucket,
+		Name:            o.Name,
+		ContentType:     o.ContentType,
+		ContentLanguage: o.ContentLanguage,
+		CacheControl:    o.CacheControl,
+		ACL:             acl,
+		Owner:           owner,
+		ContentEncoding: o.ContentEncoding,
+		Size:            int64(o.Size),
+		MD5:             md5,
+		CRC32C:          crc32c,
+		MediaLink:       o.MediaLink,
+		Metadata:        o.Metadata,
+		Generation:      o.Generation,
+		MetaGeneration:  o.Metageneration,
+		StorageClass:    o.StorageClass,
+		Created:         convertTime(o.TimeCreated),
+		Deleted:         convertTime(o.TimeDeleted),
+		Updated:         convertTime(o.Updated),
+	}
+}
+
+// Query represents a query to filter objects from a bucket.
+type Query struct {
+	// Delimiter returns results in a directory-like fashion.
+	// Results will contain only objects whose names, aside from the
+	// prefix, do not contain delimiter. Objects whose names,
+	// aside from the prefix, contain delimiter will have their name,
+	// truncated after the delimiter, returned in prefixes.
+	// Duplicate prefixes are omitted.
+	// Optional.
+	Delimiter string
+
+	// Prefix is the prefix filter to query objects
+	// whose names begin with this prefix.
+	// Optional.
+	Prefix string
+
+	// Versions indicates whether multiple versions of the same
+	// object will be included in the results.
+	Versions bool
+
+	// Cursor is a previously-returned page token
+	// representing part of the larger set of results to view.
+	// Optional.
+	Cursor string
+
+	// MaxResults is the maximum number of items plus prefixes
+	// to return. As duplicate prefixes are omitted,
+	// fewer total results may be returned than requested.
+	// The default page limit is used if it is negative or zero.
+	MaxResults int
+}
+
+// ObjectList represents a list of objects returned from a bucket List call.
+type ObjectList struct {
+	// Results represent a list of object results.
+	Results []*ObjectAttrs
+
+	// Next is the continuation query to retrieve more
+	// results with the same filtering criteria. If there
+	// are no more results to retrieve, it is nil.
+	Next *Query
+
+	// Prefixes represents prefixes of objects
+	// matching-but-not-listed up to and including
+	// the requested delimiter.
+	Prefixes []string
+}
+
+// contentTyper implements ContentTyper to enable an
+// io.ReadCloser to specify its MIME type.
+type contentTyper struct {
+	io.Reader
+	t string
+}
+
+func (c *contentTyper) ContentType() string {
+	return c.t
+}
+
+// A Condition constrains methods to act on specific generations of
+// resources.
+//
+// Not all conditions or combinations of conditions are applicable to
+// all methods.
+type Condition interface {
+	// method is the high-level ObjectHandle method name, for
+	// error messages.  call is the call object to modify.
+	modifyCall(method string, call interface{}) error
+}
+
+// applyConds modifies the provided call using the conditions in conds.
+// call is something that quacks like a *raw.WhateverCall.
+func applyConds(method string, conds []Condition, call interface{}) error {
+	for _, cond := range conds {
+		if err := cond.modifyCall(method, call); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// toSourceConds returns a slice of Conditions derived from Conds that instead
+// function on the equivalent Source methods of a call.
+func toSourceConds(conds []Condition) []Condition {
+	out := make([]Condition, 0, len(conds))
+	for _, c := range conds {
+		switch c := c.(type) {
+		case genCond:
+			var m string
+			if strings.HasPrefix(c.method, "If") {
+				m = "IfSource" + c.method[2:]
+			} else {
+				m = "Source" + c.method
+			}
+			out = append(out, genCond{method: m, val: c.val})
+		default:
+			// NOTE(djd): If the message from unsupportedCond becomes
+			// confusing, we'll need to find a way for Conditions to
+			// identify themselves.
+			out = append(out, unsupportedCond{})
+		}
+	}
+	return out
+}
+
+func Generation(gen int64) Condition               { return genCond{"Generation", gen} }
+func IfGenerationMatch(gen int64) Condition        { return genCond{"IfGenerationMatch", gen} }
+func IfGenerationNotMatch(gen int64) Condition     { return genCond{"IfGenerationNotMatch", gen} }
+func IfMetaGenerationMatch(gen int64) Condition    { return genCond{"IfMetagenerationMatch", gen} }
+func IfMetaGenerationNotMatch(gen int64) Condition { return genCond{"IfMetagenerationNotMatch", gen} }
+
+type genCond struct {
+	method string
+	val    int64
+}
+
+func (g genCond) modifyCall(srcMethod string, call interface{}) error {
+	rv := reflect.ValueOf(call)
+	meth := rv.MethodByName(g.method)
+	if !meth.IsValid() {
+		return fmt.Errorf("%s: condition %s not supported", srcMethod, g.method)
+	}
+	meth.Call([]reflect.Value{reflect.ValueOf(g.val)})
+	return nil
+}
+
+type unsupportedCond struct{}
+
+func (unsupportedCond) modifyCall(srcMethod string, call interface{}) error {
+	return fmt.Errorf("%s: condition not supported", srcMethod)
+}
+
+func appendParam(req *http.Request, k, v string) {
+	sep := ""
+	if req.URL.RawQuery != "" {
+		sep = "&"
+	}
+	req.URL.RawQuery += sep + url.QueryEscape(k) + "=" + url.QueryEscape(v)
+}
+
+// objectsGetCall wraps an *http.Request for an object fetch call, but adds the methods
+// that modifyCall searches for by name. (the same names as the raw, auto-generated API)
+type objectsGetCall struct{ req *http.Request }
+
+func (c objectsGetCall) Generation(gen int64) {
+	appendParam(c.req, "generation", fmt.Sprint(gen))
+}
+func (c objectsGetCall) IfGenerationMatch(gen int64) {
+	appendParam(c.req, "ifGenerationMatch", fmt.Sprint(gen))
+}
+func (c objectsGetCall) IfGenerationNotMatch(gen int64) {
+	appendParam(c.req, "ifGenerationNotMatch", fmt.Sprint(gen))
+}
+func (c objectsGetCall) IfMetagenerationMatch(gen int64) {
+	appendParam(c.req, "ifMetagenerationMatch", fmt.Sprint(gen))
+}
+func (c objectsGetCall) IfMetagenerationNotMatch(gen int64) {
+	appendParam(c.req, "ifMetagenerationNotMatch", fmt.Sprint(gen))
+}
diff --git a/vendor/google.golang.org/cloud/storage/writer.go b/vendor/google.golang.org/cloud/storage/writer.go
new file mode 100644
index 0000000..60937c0
--- /dev/null
+++ b/vendor/google.golang.org/cloud/storage/writer.go
@@ -0,0 +1,129 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package storage
+
+import (
+	"fmt"
+	"io"
+	"unicode/utf8"
+
+	"golang.org/x/net/context"
+	"google.golang.org/api/googleapi"
+	raw "google.golang.org/api/storage/v1"
+)
+
+// A Writer writes a Cloud Storage object.
+type Writer struct {
+	// ObjectAttrs are optional attributes to set on the object. Any attributes
+	// must be initialized before the first Write call. Nil or zero-valued
+	// attributes are ignored.
+	ObjectAttrs
+
+	ctx context.Context
+	o   *ObjectHandle
+
+	opened bool
+	pw     *io.PipeWriter
+
+	donec chan struct{} // closed after err and obj are set.
+	err   error
+	obj   *ObjectAttrs
+}
+
+func (w *Writer) open() error {
+	attrs := w.ObjectAttrs
+	// Check the developer didn't change the object Name (this is unfortunate, but
+	// we don't want to store an object under the wrong name).
+	if attrs.Name != w.o.object {
+		return fmt.Errorf("storage: Writer.Name %q does not match object name %q", attrs.Name, w.o.object)
+	}
+	if !utf8.ValidString(attrs.Name) {
+		return fmt.Errorf("storage: object name %q is not valid UTF-8", attrs.Name)
+	}
+	pr, pw := io.Pipe()
+	w.pw = pw
+	w.opened = true
+
+	var mediaOpts []googleapi.MediaOption
+	if c := attrs.ContentType; c != "" {
+		mediaOpts = append(mediaOpts, googleapi.ContentType(c))
+	}
+
+	go func() {
+		defer close(w.donec)
+
+		call := w.o.c.raw.Objects.Insert(w.o.bucket, attrs.toRawObject(w.o.bucket)).
+			Media(pr, mediaOpts...).
+			Projection("full").
+			Context(w.ctx)
+
+		var resp *raw.Object
+		err := applyConds("NewWriter", w.o.conds, call)
+		if err == nil {
+			resp, err = call.Do()
+		}
+		if err != nil {
+			w.err = err
+			pr.CloseWithError(w.err)
+			return
+		}
+		w.obj = newObject(resp)
+	}()
+	return nil
+}
+
+// Write appends to w.
+func (w *Writer) Write(p []byte) (n int, err error) {
+	if w.err != nil {
+		return 0, w.err
+	}
+	if !w.opened {
+		if err := w.open(); err != nil {
+			return 0, err
+		}
+	}
+	return w.pw.Write(p)
+}
+
+// Close completes the write operation and flushes any buffered data.
+// If Close doesn't return an error, metadata about the written object
+// can be retrieved by calling Object.
+func (w *Writer) Close() error {
+	if !w.opened {
+		if err := w.open(); err != nil {
+			return err
+		}
+	}
+	if err := w.pw.Close(); err != nil {
+		return err
+	}
+	<-w.donec
+	return w.err
+}
+
+// CloseWithError aborts the write operation with the provided error.
+// CloseWithError always returns nil.
+func (w *Writer) CloseWithError(err error) error {
+	if !w.opened {
+		return nil
+	}
+	return w.pw.CloseWithError(err)
+}
+
+// ObjectAttrs returns metadata about a successfully-written object.
+// It's only valid to call it after Close returns nil.
+func (w *Writer) Attrs() *ObjectAttrs {
+	return w.obj
+}
diff --git a/vendor/google.golang.org/grpc/CONTRIBUTING.md b/vendor/google.golang.org/grpc/CONTRIBUTING.md
new file mode 100644
index 0000000..36cd6f7
--- /dev/null
+++ b/vendor/google.golang.org/grpc/CONTRIBUTING.md
@@ -0,0 +1,46 @@
+# How to contribute
+
+We definitely welcome patches and contribution to grpc! Here are some guidelines
+and information about how to do so.
+
+## Sending patches
+
+### Getting started
+
+1. Check out the code:
+
+        $ go get google.golang.org/grpc
+        $ cd $GOPATH/src/google.golang.org/grpc
+
+1. Create a fork of the grpc-go repository.
+1. Add your fork as a remote:
+
+        $ git remote add fork git@github.com:$YOURGITHUBUSERNAME/grpc-go.git
+
+1. Make changes, commit them.
+1. Run the test suite:
+
+        $ make test
+
+1. Push your changes to your fork:
+
+        $ git push fork ...
+
+1. Open a pull request.
+
+## Legal requirements
+
+In order to protect both you and ourselves, you will need to sign the
+[Contributor License Agreement](https://cla.developers.google.com/clas).
+
+## Filing Issues
+When filing an issue, make sure to answer these five questions:
+
+1. What version of Go are you using (`go version`)?
+2. What operating system and processor architecture are you using?
+3. What did you do?
+4. What did you expect to see?
+5. What did you see instead?
+
+### Contributing code
+Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
diff --git a/vendor/google.golang.org/grpc/LICENSE b/vendor/google.golang.org/grpc/LICENSE
new file mode 100644
index 0000000..f4988b4
--- /dev/null
+++ b/vendor/google.golang.org/grpc/LICENSE
@@ -0,0 +1,28 @@
+Copyright 2014, Google Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+    * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/google.golang.org/grpc/Makefile b/vendor/google.golang.org/grpc/Makefile
new file mode 100644
index 0000000..d26eb90
--- /dev/null
+++ b/vendor/google.golang.org/grpc/Makefile
@@ -0,0 +1,51 @@
+all: test testrace
+
+deps:
+	go get -d -v google.golang.org/grpc/...
+
+updatedeps:
+	go get -d -v -u -f google.golang.org/grpc/...
+
+testdeps:
+	go get -d -v -t google.golang.org/grpc/...
+
+updatetestdeps:
+	go get -d -v -t -u -f google.golang.org/grpc/...
+
+build: deps
+	go build google.golang.org/grpc/...
+
+proto:
+	@ if ! which protoc > /dev/null; then \
+		echo "error: protoc not installed" >&2; \
+		exit 1; \
+	fi
+	go get -u -v github.com/golang/protobuf/protoc-gen-go
+	for file in $$(git ls-files '*.proto'); do \
+		protoc -I $$(dirname $$file) --go_out=plugins=grpc:$$(dirname $$file) $$file; \
+	done
+
+test: testdeps
+	go test -v -cpu 1,4 google.golang.org/grpc/...
+
+testrace: testdeps
+	go test -v -race -cpu 1,4 google.golang.org/grpc/...
+
+clean:
+	go clean -i google.golang.org/grpc/...
+
+coverage: testdeps
+	./coverage.sh --coveralls
+
+.PHONY: \
+	all \
+	deps \
+	updatedeps \
+	testdeps \
+	updatetestdeps \
+	build \
+	proto \
+	test \
+	testrace \
+	clean \
+	coverage
diff --git a/vendor/google.golang.org/grpc/PATENTS b/vendor/google.golang.org/grpc/PATENTS
new file mode 100644
index 0000000..69b4795
--- /dev/null
+++ b/vendor/google.golang.org/grpc/PATENTS
@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the gRPC project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of gRPC, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of gRPC.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of gRPC or any code incorporated within this
+implementation of gRPC constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of gRPC
+shall terminate as of the date such litigation is filed.
diff --git a/vendor/google.golang.org/grpc/README.md b/vendor/google.golang.org/grpc/README.md
new file mode 100644
index 0000000..90e9453
--- /dev/null
+++ b/vendor/google.golang.org/grpc/README.md
@@ -0,0 +1,32 @@
+#gRPC-Go
+
+[![Build Status](https://travis-ci.org/grpc/grpc-go.svg)](https://travis-ci.org/grpc/grpc-go) [![GoDoc](https://godoc.org/google.golang.org/grpc?status.svg)](https://godoc.org/google.golang.org/grpc)
+
+The Go implementation of [gRPC](http://www.grpc.io/): A high performance, open source, general RPC framework that puts mobile and HTTP/2 first. For more information see the [gRPC Quick Start](http://www.grpc.io/docs/) guide.
+
+Installation
+------------
+
+To install this package, you need to install Go and setup your Go workspace on your computer. The simplest way to install the library is to run:
+
+```
+$ go get google.golang.org/grpc
+```
+
+Prerequisites
+-------------
+
+This requires Go 1.5 or later .
+
+Constraints
+-----------
+The grpc package should only depend on standard Go packages and a small number of exceptions. If your contribution introduces new dependencies which are NOT in the [list](http://godoc.org/google.golang.org/grpc?imports), you need a discussion with gRPC-Go authors and consultants.
+
+Documentation
+-------------
+See [API documentation](https://godoc.org/google.golang.org/grpc) for package and API descriptions and find examples in the [examples directory](examples/).
+
+Status
+------
+Beta release
+
diff --git a/vendor/google.golang.org/grpc/backoff.go b/vendor/google.golang.org/grpc/backoff.go
new file mode 100644
index 0000000..52f4f10
--- /dev/null
+++ b/vendor/google.golang.org/grpc/backoff.go
@@ -0,0 +1,80 @@
+package grpc
+
+import (
+	"math/rand"
+	"time"
+)
+
+// DefaultBackoffConfig uses values specified for backoff in
+// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
+var (
+	DefaultBackoffConfig = BackoffConfig{
+		MaxDelay:  120 * time.Second,
+		baseDelay: 1.0 * time.Second,
+		factor:    1.6,
+		jitter:    0.2,
+	}
+)
+
+// backoffStrategy defines the methodology for backing off after a grpc
+// connection failure.
+//
+// This is unexported until the gRPC project decides whether or not to allow
+// alternative backoff strategies. Once a decision is made, this type and its
+// method may be exported.
+type backoffStrategy interface {
+	// backoff returns the amount of time to wait before the next retry given
+	// the number of consecutive failures.
+	backoff(retries int) time.Duration
+}
+
+// BackoffConfig defines the parameters for the default gRPC backoff strategy.
+type BackoffConfig struct {
+	// MaxDelay is the upper bound of backoff delay.
+	MaxDelay time.Duration
+
+	// TODO(stevvooe): The following fields are not exported, as allowing
+	// changes would violate the current gRPC specification for backoff. If
+	// gRPC decides to allow more interesting backoff strategies, these fields
+	// may be opened up in the future.
+
+	// baseDelay is the amount of time to wait before retrying after the first
+	// failure.
+	baseDelay time.Duration
+
+	// factor is applied to the backoff after each retry.
+	factor float64
+
+	// jitter provides a range to randomize backoff delays.
+	jitter float64
+}
+
+func setDefaults(bc *BackoffConfig) {
+	md := bc.MaxDelay
+	*bc = DefaultBackoffConfig
+
+	if md > 0 {
+		bc.MaxDelay = md
+	}
+}
+
+func (bc BackoffConfig) backoff(retries int) (t time.Duration) {
+	if retries == 0 {
+		return bc.baseDelay
+	}
+	backoff, max := float64(bc.baseDelay), float64(bc.MaxDelay)
+	for backoff < max && retries > 0 {
+		backoff *= bc.factor
+		retries--
+	}
+	if backoff > max {
+		backoff = max
+	}
+	// Randomize backoff delays so that if a cluster of requests start at
+	// the same time, they won't operate in lockstep.
+	backoff *= 1 + bc.jitter*(rand.Float64()*2-1)
+	if backoff < 0 {
+		return 0
+	}
+	return time.Duration(backoff)
+}
diff --git a/vendor/google.golang.org/grpc/balancer.go b/vendor/google.golang.org/grpc/balancer.go
new file mode 100644
index 0000000..348bf97
--- /dev/null
+++ b/vendor/google.golang.org/grpc/balancer.go
@@ -0,0 +1,340 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"fmt"
+	"sync"
+
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/naming"
+	"google.golang.org/grpc/transport"
+)
+
+// Address represents a server the client connects to.
+// This is the EXPERIMENTAL API and may be changed or extended in the future.
+type Address struct {
+	// Addr is the server address on which a connection will be established.
+	Addr string
+	// Metadata is the information associated with Addr, which may be used
+	// to make load balancing decision.
+	Metadata interface{}
+}
+
+// BalancerGetOptions configures a Get call.
+// This is the EXPERIMENTAL API and may be changed or extended in the future.
+type BalancerGetOptions struct {
+	// BlockingWait specifies whether Get should block when there is no
+	// connected address.
+	BlockingWait bool
+}
+
+// Balancer chooses network addresses for RPCs.
+// This is the EXPERIMENTAL API and may be changed or extended in the future.
+type Balancer interface {
+	// Start does the initialization work to bootstrap a Balancer. For example,
+	// this function may start the name resolution and watch the updates. It will
+	// be called when dialing.
+	Start(target string) error
+	// Up informs the Balancer that gRPC has a connection to the server at
+	// addr. It returns down which is called once the connection to addr gets
+	// lost or closed.
+	// TODO: It is not clear how to construct and take advantage the meaningful error
+	// parameter for down. Need realistic demands to guide.
+	Up(addr Address) (down func(error))
+	// Get gets the address of a server for the RPC corresponding to ctx.
+	// i) If it returns a connected address, gRPC internals issues the RPC on the
+	// connection to this address;
+	// ii) If it returns an address on which the connection is under construction
+	// (initiated by Notify(...)) but not connected, gRPC internals
+	//  * fails RPC if the RPC is fail-fast and connection is in the TransientFailure or
+	//  Shutdown state;
+	//  or
+	//  * issues RPC on the connection otherwise.
+	// iii) If it returns an address on which the connection does not exist, gRPC
+	// internals treats it as an error and will fail the corresponding RPC.
+	//
+	// Therefore, the following is the recommended rule when writing a custom Balancer.
+	// If opts.BlockingWait is true, it should return a connected address or
+	// block if there is no connected address. It should respect the timeout or
+	// cancellation of ctx when blocking. If opts.BlockingWait is false (for fail-fast
+	// RPCs), it should return an address it has notified via Notify(...) immediately
+	// instead of blocking.
+	//
+	// The function returns put which is called once the rpc has completed or failed.
+	// put can collect and report RPC stats to a remote load balancer. gRPC internals
+	// will try to call this again if err is non-nil (unless err is ErrClientConnClosing).
+	//
+	// TODO: Add other non-recoverable errors?
+	Get(ctx context.Context, opts BalancerGetOptions) (addr Address, put func(), err error)
+	// Notify returns a channel that is used by gRPC internals to watch the addresses
+	// gRPC needs to connect. The addresses might be from a name resolver or remote
+	// load balancer. gRPC internals will compare it with the existing connected
+	// addresses. If the address Balancer notified is not in the existing connected
+	// addresses, gRPC starts to connect the address. If an address in the existing
+	// connected addresses is not in the notification list, the corresponding connection
+	// is shutdown gracefully. Otherwise, there are no operations to take. Note that
+	// the Address slice must be the full list of the Addresses which should be connected.
+	// It is NOT delta.
+	Notify() <-chan []Address
+	// Close shuts down the balancer.
+	Close() error
+}
+
+// downErr implements net.Error. It is constructed by gRPC internals and passed to the down
+// call of Balancer.
+type downErr struct {
+	timeout   bool
+	temporary bool
+	desc      string
+}
+
+func (e downErr) Error() string   { return e.desc }
+func (e downErr) Timeout() bool   { return e.timeout }
+func (e downErr) Temporary() bool { return e.temporary }
+
+func downErrorf(timeout, temporary bool, format string, a ...interface{}) downErr {
+	return downErr{
+		timeout:   timeout,
+		temporary: temporary,
+		desc:      fmt.Sprintf(format, a...),
+	}
+}
+
+// RoundRobin returns a Balancer that selects addresses round-robin. It uses r to watch
+// the name resolution updates and updates the addresses available correspondingly.
+func RoundRobin(r naming.Resolver) Balancer {
+	return &roundRobin{r: r}
+}
+
+type roundRobin struct {
+	r         naming.Resolver
+	w         naming.Watcher
+	open      []Address // all the addresses the client should potentially connect
+	mu        sync.Mutex
+	addrCh    chan []Address // the channel to notify gRPC internals the list of addresses the client should connect to.
+	connected []Address      // all the connected addresses
+	next      int            // index of the next address to return for Get()
+	waitCh    chan struct{}  // the channel to block when there is no connected address available
+	done      bool           // The Balancer is closed.
+}
+
+func (rr *roundRobin) watchAddrUpdates() error {
+	updates, err := rr.w.Next()
+	if err != nil {
+		grpclog.Println("grpc: the naming watcher stops working due to %v.", err)
+		return err
+	}
+	rr.mu.Lock()
+	defer rr.mu.Unlock()
+	for _, update := range updates {
+		addr := Address{
+			Addr: update.Addr,
+		}
+		switch update.Op {
+		case naming.Add:
+			var exist bool
+			for _, v := range rr.open {
+				if addr == v {
+					exist = true
+					grpclog.Println("grpc: The name resolver wanted to add an existing address: ", addr)
+					break
+				}
+			}
+			if exist {
+				continue
+			}
+			rr.open = append(rr.open, addr)
+		case naming.Delete:
+			for i, v := range rr.open {
+				if v == addr {
+					copy(rr.open[i:], rr.open[i+1:])
+					rr.open = rr.open[:len(rr.open)-1]
+					break
+				}
+			}
+		default:
+			grpclog.Println("Unknown update.Op ", update.Op)
+		}
+	}
+	// Make a copy of rr.open and write it onto rr.addrCh so that gRPC internals gets notified.
+	open := make([]Address, len(rr.open), len(rr.open))
+	copy(open, rr.open)
+	if rr.done {
+		return ErrClientConnClosing
+	}
+	rr.addrCh <- open
+	return nil
+}
+
+func (rr *roundRobin) Start(target string) error {
+	if rr.r == nil {
+		// If there is no name resolver installed, it is not needed to
+		// do name resolution. In this case, rr.addrCh stays nil.
+		return nil
+	}
+	w, err := rr.r.Resolve(target)
+	if err != nil {
+		return err
+	}
+	rr.w = w
+	rr.addrCh = make(chan []Address)
+	go func() {
+		for {
+			if err := rr.watchAddrUpdates(); err != nil {
+				return
+			}
+		}
+	}()
+	return nil
+}
+
+// Up appends addr to the end of rr.connected and sends notification if there
+// are pending Get() calls.
+func (rr *roundRobin) Up(addr Address) func(error) {
+	rr.mu.Lock()
+	defer rr.mu.Unlock()
+	for _, a := range rr.connected {
+		if a == addr {
+			return nil
+		}
+	}
+	rr.connected = append(rr.connected, addr)
+	if len(rr.connected) == 1 {
+		// addr is only one available. Notify the Get() callers who are blocking.
+		if rr.waitCh != nil {
+			close(rr.waitCh)
+			rr.waitCh = nil
+		}
+	}
+	return func(err error) {
+		rr.down(addr, err)
+	}
+}
+
+// down removes addr from rr.connected and moves the remaining addrs forward.
+func (rr *roundRobin) down(addr Address, err error) {
+	rr.mu.Lock()
+	defer rr.mu.Unlock()
+	for i, a := range rr.connected {
+		if a == addr {
+			copy(rr.connected[i:], rr.connected[i+1:])
+			rr.connected = rr.connected[:len(rr.connected)-1]
+			return
+		}
+	}
+}
+
+// Get returns the next addr in the rotation.
+func (rr *roundRobin) Get(ctx context.Context, opts BalancerGetOptions) (addr Address, put func(), err error) {
+	var ch chan struct{}
+	rr.mu.Lock()
+	if rr.done {
+		rr.mu.Unlock()
+		err = ErrClientConnClosing
+		return
+	}
+	if rr.next >= len(rr.connected) {
+		rr.next = 0
+	}
+	if len(rr.connected) > 0 {
+		addr = rr.connected[rr.next]
+		rr.next++
+		rr.mu.Unlock()
+		return
+	}
+	// There is no address available. Wait on rr.waitCh.
+	// TODO(zhaoq): Handle the case when opts.BlockingWait is false.
+	if rr.waitCh == nil {
+		ch = make(chan struct{})
+		rr.waitCh = ch
+	} else {
+		ch = rr.waitCh
+	}
+	rr.mu.Unlock()
+	for {
+		select {
+		case <-ctx.Done():
+			err = transport.ContextErr(ctx.Err())
+			return
+		case <-ch:
+			rr.mu.Lock()
+			if rr.done {
+				rr.mu.Unlock()
+				err = ErrClientConnClosing
+				return
+			}
+			if len(rr.connected) == 0 {
+				// The newly added addr got removed by Down() again.
+				if rr.waitCh == nil {
+					ch = make(chan struct{})
+					rr.waitCh = ch
+				} else {
+					ch = rr.waitCh
+				}
+				rr.mu.Unlock()
+				continue
+			}
+			if rr.next >= len(rr.connected) {
+				rr.next = 0
+			}
+			addr = rr.connected[rr.next]
+			rr.next++
+			rr.mu.Unlock()
+			return
+		}
+	}
+}
+
+func (rr *roundRobin) Notify() <-chan []Address {
+	return rr.addrCh
+}
+
+func (rr *roundRobin) Close() error {
+	rr.mu.Lock()
+	defer rr.mu.Unlock()
+	rr.done = true
+	if rr.w != nil {
+		rr.w.Close()
+	}
+	if rr.waitCh != nil {
+		close(rr.waitCh)
+		rr.waitCh = nil
+	}
+	if rr.addrCh != nil {
+		close(rr.addrCh)
+	}
+	return nil
+}
diff --git a/vendor/google.golang.org/grpc/call.go b/vendor/google.golang.org/grpc/call.go
new file mode 100644
index 0000000..d6d993b
--- /dev/null
+++ b/vendor/google.golang.org/grpc/call.go
@@ -0,0 +1,215 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"bytes"
+	"io"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/trace"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/transport"
+)
+
+// recvResponse receives and parses an RPC response.
+// On error, it returns the error and indicates whether the call should be retried.
+//
+// TODO(zhaoq): Check whether the received message sequence is valid.
+func recvResponse(dopts dialOptions, t transport.ClientTransport, c *callInfo, stream *transport.Stream, reply interface{}) error {
+	// Try to acquire header metadata from the server if there is any.
+	var err error
+	c.headerMD, err = stream.Header()
+	if err != nil {
+		return err
+	}
+	p := &parser{r: stream}
+	for {
+		if err = recv(p, dopts.codec, stream, dopts.dc, reply); err != nil {
+			if err == io.EOF {
+				break
+			}
+			return err
+		}
+	}
+	c.trailerMD = stream.Trailer()
+	return nil
+}
+
+// sendRequest writes out various information of an RPC such as Context and Message.
+func sendRequest(ctx context.Context, codec Codec, compressor Compressor, callHdr *transport.CallHdr, t transport.ClientTransport, args interface{}, opts *transport.Options) (_ *transport.Stream, err error) {
+	stream, err := t.NewStream(ctx, callHdr)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if err != nil {
+			if _, ok := err.(transport.ConnectionError); !ok {
+				t.CloseStream(stream, err)
+			}
+		}
+	}()
+	var cbuf *bytes.Buffer
+	if compressor != nil {
+		cbuf = new(bytes.Buffer)
+	}
+	outBuf, err := encode(codec, args, compressor, cbuf)
+	if err != nil {
+		return nil, transport.StreamErrorf(codes.Internal, "grpc: %v", err)
+	}
+	err = t.Write(stream, outBuf, opts)
+	if err != nil {
+		return nil, err
+	}
+	// Sent successfully.
+	return stream, nil
+}
+
+// Invoke sends the RPC request on the wire and returns after response is received.
+// Invoke is called by generated code. Also users can call Invoke directly when it
+// is really needed in their use cases.
+func Invoke(ctx context.Context, method string, args, reply interface{}, cc *ClientConn, opts ...CallOption) (err error) {
+	var c callInfo
+	for _, o := range opts {
+		if err := o.before(&c); err != nil {
+			return toRPCErr(err)
+		}
+	}
+	defer func() {
+		for _, o := range opts {
+			o.after(&c)
+		}
+	}()
+	if EnableTracing {
+		c.traceInfo.tr = trace.New("grpc.Sent."+methodFamily(method), method)
+		defer c.traceInfo.tr.Finish()
+		c.traceInfo.firstLine.client = true
+		if deadline, ok := ctx.Deadline(); ok {
+			c.traceInfo.firstLine.deadline = deadline.Sub(time.Now())
+		}
+		c.traceInfo.tr.LazyLog(&c.traceInfo.firstLine, false)
+		// TODO(dsymonds): Arrange for c.traceInfo.firstLine.remoteAddr to be set.
+		defer func() {
+			if err != nil {
+				c.traceInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+				c.traceInfo.tr.SetError()
+			}
+		}()
+	}
+	topts := &transport.Options{
+		Last:  true,
+		Delay: false,
+	}
+	for {
+		var (
+			err    error
+			t      transport.ClientTransport
+			stream *transport.Stream
+			// Record the put handler from Balancer.Get(...). It is called once the
+			// RPC has completed or failed.
+			put func()
+		)
+		// TODO(zhaoq): Need a formal spec of fail-fast.
+		callHdr := &transport.CallHdr{
+			Host:   cc.authority,
+			Method: method,
+		}
+		if cc.dopts.cp != nil {
+			callHdr.SendCompress = cc.dopts.cp.Type()
+		}
+		gopts := BalancerGetOptions{
+			BlockingWait: !c.failFast,
+		}
+		t, put, err = cc.getTransport(ctx, gopts)
+		if err != nil {
+			// TODO(zhaoq): Probably revisit the error handling.
+			if err == ErrClientConnClosing {
+				return Errorf(codes.FailedPrecondition, "%v", err)
+			}
+			if _, ok := err.(transport.StreamError); ok {
+				return toRPCErr(err)
+			}
+			if _, ok := err.(transport.ConnectionError); ok {
+				if c.failFast {
+					return toRPCErr(err)
+				}
+			}
+			// All the remaining cases are treated as retryable.
+			continue
+		}
+		if c.traceInfo.tr != nil {
+			c.traceInfo.tr.LazyLog(&payload{sent: true, msg: args}, true)
+		}
+		stream, err = sendRequest(ctx, cc.dopts.codec, cc.dopts.cp, callHdr, t, args, topts)
+		if err != nil {
+			if put != nil {
+				put()
+				put = nil
+			}
+			if _, ok := err.(transport.ConnectionError); ok {
+				if c.failFast {
+					return toRPCErr(err)
+				}
+				continue
+			}
+			return toRPCErr(err)
+		}
+		// Receive the response
+		err = recvResponse(cc.dopts, t, &c, stream, reply)
+		if err != nil {
+			if put != nil {
+				put()
+				put = nil
+			}
+			if _, ok := err.(transport.ConnectionError); ok {
+				if c.failFast {
+					return toRPCErr(err)
+				}
+				continue
+			}
+			t.CloseStream(stream, err)
+			return toRPCErr(err)
+		}
+		if c.traceInfo.tr != nil {
+			c.traceInfo.tr.LazyLog(&payload{sent: false, msg: reply}, true)
+		}
+		t.CloseStream(stream, nil)
+		if put != nil {
+			put()
+			put = nil
+		}
+		return Errorf(stream.StatusCode(), "%s", stream.StatusDesc())
+	}
+}
diff --git a/vendor/google.golang.org/grpc/clientconn.go b/vendor/google.golang.org/grpc/clientconn.go
new file mode 100644
index 0000000..53a1212
--- /dev/null
+++ b/vendor/google.golang.org/grpc/clientconn.go
@@ -0,0 +1,724 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/trace"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/transport"
+)
+
+var (
+	// ErrClientConnClosing indicates that the operation is illegal because
+	// the ClientConn is closing.
+	ErrClientConnClosing = errors.New("grpc: the client connection is closing")
+
+	// errNoTransportSecurity indicates that there is no transport security
+	// being set for ClientConn. Users should either set one or explicitly
+	// call WithInsecure DialOption to disable security.
+	errNoTransportSecurity = errors.New("grpc: no transport security set (use grpc.WithInsecure() explicitly or set credentials)")
+	// errCredentialsMisuse indicates that users want to transmit security information
+	// (e.g., oauth2 token) which requires secure connection on an insecure
+	// connection.
+	errCredentialsMisuse = errors.New("grpc: the credentials require transport level security (use grpc.WithTransportAuthenticator() to set)")
+	// errClientConnTimeout indicates that the connection could not be
+	// established or re-established within the specified timeout.
+	errClientConnTimeout = errors.New("grpc: timed out trying to connect")
+	// errNetworkIP indicates that the connection is down due to some network I/O error.
+	errNetworkIO = errors.New("grpc: failed with network I/O error")
+	// errConnDrain indicates that the connection starts to be drained and does not accept any new RPCs.
+	errConnDrain = errors.New("grpc: the connection is drained")
+	// errConnClosing indicates that the connection is closing.
+	errConnClosing = errors.New("grpc: the connection is closing")
+	// minimum time to give a connection to complete
+	minConnectTimeout = 20 * time.Second
+)
+
+// dialOptions configure a Dial call. dialOptions are set by the DialOption
+// values passed to Dial.
+type dialOptions struct {
+	codec    Codec
+	cp       Compressor
+	dc       Decompressor
+	bs       backoffStrategy
+	balancer Balancer
+	block    bool
+	insecure bool
+	copts    transport.ConnectOptions
+}
+
+// DialOption configures how we set up the connection.
+type DialOption func(*dialOptions)
+
+// WithCodec returns a DialOption which sets a codec for message marshaling and unmarshaling.
+func WithCodec(c Codec) DialOption {
+	return func(o *dialOptions) {
+		o.codec = c
+	}
+}
+
+// WithCompressor returns a DialOption which sets a CompressorGenerator for generating message
+// compressor.
+func WithCompressor(cp Compressor) DialOption {
+	return func(o *dialOptions) {
+		o.cp = cp
+	}
+}
+
+// WithDecompressor returns a DialOption which sets a DecompressorGenerator for generating
+// message decompressor.
+func WithDecompressor(dc Decompressor) DialOption {
+	return func(o *dialOptions) {
+		o.dc = dc
+	}
+}
+
+// WithBalancer returns a DialOption which sets a load balancer.
+func WithBalancer(b Balancer) DialOption {
+	return func(o *dialOptions) {
+		o.balancer = b
+	}
+}
+
+// WithBackoffMaxDelay configures the dialer to use the provided maximum delay
+// when backing off after failed connection attempts.
+func WithBackoffMaxDelay(md time.Duration) DialOption {
+	return WithBackoffConfig(BackoffConfig{MaxDelay: md})
+}
+
+// WithBackoffConfig configures the dialer to use the provided backoff
+// parameters after connection failures.
+//
+// Use WithBackoffMaxDelay until more parameters on BackoffConfig are opened up
+// for use.
+func WithBackoffConfig(b BackoffConfig) DialOption {
+	// Set defaults to ensure that provided BackoffConfig is valid and
+	// unexported fields get default values.
+	setDefaults(&b)
+	return withBackoff(b)
+}
+
+// withBackoff sets the backoff strategy used for retries after a
+// failed connection attempt.
+//
+// This can be exported if arbitrary backoff strategies are allowed by gRPC.
+func withBackoff(bs backoffStrategy) DialOption {
+	return func(o *dialOptions) {
+		o.bs = bs
+	}
+}
+
+// WithBlock returns a DialOption which makes caller of Dial blocks until the underlying
+// connection is up. Without this, Dial returns immediately and connecting the server
+// happens in background.
+func WithBlock() DialOption {
+	return func(o *dialOptions) {
+		o.block = true
+	}
+}
+
+// WithInsecure returns a DialOption which disables transport security for this ClientConn.
+// Note that transport security is required unless WithInsecure is set.
+func WithInsecure() DialOption {
+	return func(o *dialOptions) {
+		o.insecure = true
+	}
+}
+
+// WithTransportCredentials returns a DialOption which configures a
+// connection level security credentials (e.g., TLS/SSL).
+func WithTransportCredentials(creds credentials.TransportAuthenticator) DialOption {
+	return func(o *dialOptions) {
+		o.copts.AuthOptions = append(o.copts.AuthOptions, creds)
+	}
+}
+
+// WithPerRPCCredentials returns a DialOption which sets
+// credentials which will place auth state on each outbound RPC.
+func WithPerRPCCredentials(creds credentials.Credentials) DialOption {
+	return func(o *dialOptions) {
+		o.copts.AuthOptions = append(o.copts.AuthOptions, creds)
+	}
+}
+
+// WithTimeout returns a DialOption that configures a timeout for dialing a client connection.
+func WithTimeout(d time.Duration) DialOption {
+	return func(o *dialOptions) {
+		o.copts.Timeout = d
+	}
+}
+
+// WithDialer returns a DialOption that specifies a function to use for dialing network addresses.
+func WithDialer(f func(addr string, timeout time.Duration) (net.Conn, error)) DialOption {
+	return func(o *dialOptions) {
+		o.copts.Dialer = f
+	}
+}
+
+// WithUserAgent returns a DialOption that specifies a user agent string for all the RPCs.
+func WithUserAgent(s string) DialOption {
+	return func(o *dialOptions) {
+		o.copts.UserAgent = s
+	}
+}
+
+// Dial creates a client connection the given target.
+func Dial(target string, opts ...DialOption) (*ClientConn, error) {
+	cc := &ClientConn{
+		target: target,
+		conns:  make(map[Address]*addrConn),
+	}
+	for _, opt := range opts {
+		opt(&cc.dopts)
+	}
+	if cc.dopts.codec == nil {
+		// Set the default codec.
+		cc.dopts.codec = protoCodec{}
+	}
+
+	if cc.dopts.bs == nil {
+		cc.dopts.bs = DefaultBackoffConfig
+	}
+
+	cc.balancer = cc.dopts.balancer
+	if cc.balancer == nil {
+		cc.balancer = RoundRobin(nil)
+	}
+	if err := cc.balancer.Start(target); err != nil {
+		return nil, err
+	}
+	ch := cc.balancer.Notify()
+	if ch == nil {
+		// There is no name resolver installed.
+		addr := Address{Addr: target}
+		if err := cc.newAddrConn(addr, false); err != nil {
+			return nil, err
+		}
+	} else {
+		addrs, ok := <-ch
+		if !ok || len(addrs) == 0 {
+			return nil, fmt.Errorf("grpc: there is no address available to dial")
+		}
+		for _, a := range addrs {
+			if err := cc.newAddrConn(a, false); err != nil {
+				return nil, err
+			}
+		}
+		go cc.lbWatcher()
+	}
+
+	colonPos := strings.LastIndex(target, ":")
+	if colonPos == -1 {
+		colonPos = len(target)
+	}
+	cc.authority = target[:colonPos]
+	return cc, nil
+}
+
+// ConnectivityState indicates the state of a client connection.
+type ConnectivityState int
+
+const (
+	// Idle indicates the ClientConn is idle.
+	Idle ConnectivityState = iota
+	// Connecting indicates the ClienConn is connecting.
+	Connecting
+	// Ready indicates the ClientConn is ready for work.
+	Ready
+	// TransientFailure indicates the ClientConn has seen a failure but expects to recover.
+	TransientFailure
+	// Shutdown indicates the ClientConn has started shutting down.
+	Shutdown
+)
+
+func (s ConnectivityState) String() string {
+	switch s {
+	case Idle:
+		return "IDLE"
+	case Connecting:
+		return "CONNECTING"
+	case Ready:
+		return "READY"
+	case TransientFailure:
+		return "TRANSIENT_FAILURE"
+	case Shutdown:
+		return "SHUTDOWN"
+	default:
+		panic(fmt.Sprintf("unknown connectivity state: %d", s))
+	}
+}
+
+// ClientConn represents a client connection to an RPC server.
+type ClientConn struct {
+	target    string
+	balancer  Balancer
+	authority string
+	dopts     dialOptions
+
+	mu    sync.RWMutex
+	conns map[Address]*addrConn
+}
+
+func (cc *ClientConn) lbWatcher() {
+	for addrs := range cc.balancer.Notify() {
+		var (
+			add []Address   // Addresses need to setup connections.
+			del []*addrConn // Connections need to tear down.
+		)
+		cc.mu.Lock()
+		for _, a := range addrs {
+			if _, ok := cc.conns[a]; !ok {
+				add = append(add, a)
+			}
+		}
+		for k, c := range cc.conns {
+			var keep bool
+			for _, a := range addrs {
+				if k == a {
+					keep = true
+					break
+				}
+			}
+			if !keep {
+				del = append(del, c)
+			}
+		}
+		cc.mu.Unlock()
+		for _, a := range add {
+			cc.newAddrConn(a, true)
+		}
+		for _, c := range del {
+			c.tearDown(errConnDrain)
+		}
+	}
+}
+
+func (cc *ClientConn) newAddrConn(addr Address, skipWait bool) error {
+	ac := &addrConn{
+		cc:           cc,
+		addr:         addr,
+		dopts:        cc.dopts,
+		shutdownChan: make(chan struct{}),
+	}
+	if EnableTracing {
+		ac.events = trace.NewEventLog("grpc.ClientConn", ac.addr.Addr)
+	}
+	if !ac.dopts.insecure {
+		var ok bool
+		for _, cd := range ac.dopts.copts.AuthOptions {
+			if _, ok = cd.(credentials.TransportAuthenticator); ok {
+				break
+			}
+		}
+		if !ok {
+			return errNoTransportSecurity
+		}
+	} else {
+		for _, cd := range ac.dopts.copts.AuthOptions {
+			if cd.RequireTransportSecurity() {
+				return errCredentialsMisuse
+			}
+		}
+	}
+	// Insert ac into ac.cc.conns. This needs to be done before any getTransport(...) is called.
+	ac.cc.mu.Lock()
+	if ac.cc.conns == nil {
+		ac.cc.mu.Unlock()
+		return ErrClientConnClosing
+	}
+	stale := ac.cc.conns[ac.addr]
+	ac.cc.conns[ac.addr] = ac
+	ac.cc.mu.Unlock()
+	if stale != nil {
+		// There is an addrConn alive on ac.addr already. This could be due to
+		// i) stale's Close is undergoing;
+		// ii) a buggy Balancer notifies duplicated Addresses.
+		stale.tearDown(errConnDrain)
+	}
+	ac.stateCV = sync.NewCond(&ac.mu)
+	// skipWait may overwrite the decision in ac.dopts.block.
+	if ac.dopts.block && !skipWait {
+		if err := ac.resetTransport(false); err != nil {
+			ac.tearDown(err)
+			return err
+		}
+		// Start to monitor the error status of transport.
+		go ac.transportMonitor()
+	} else {
+		// Start a goroutine connecting to the server asynchronously.
+		go func() {
+			if err := ac.resetTransport(false); err != nil {
+				grpclog.Printf("Failed to dial %s: %v; please retry.", ac.addr.Addr, err)
+				ac.tearDown(err)
+				return
+			}
+			ac.transportMonitor()
+		}()
+	}
+	return nil
+}
+
+func (cc *ClientConn) getTransport(ctx context.Context, opts BalancerGetOptions) (transport.ClientTransport, func(), error) {
+	// TODO(zhaoq): Implement fail-fast logic.
+	addr, put, err := cc.balancer.Get(ctx, opts)
+	if err != nil {
+		return nil, nil, err
+	}
+	cc.mu.RLock()
+	if cc.conns == nil {
+		cc.mu.RUnlock()
+		return nil, nil, ErrClientConnClosing
+	}
+	ac, ok := cc.conns[addr]
+	cc.mu.RUnlock()
+	if !ok {
+		if put != nil {
+			put()
+		}
+		return nil, nil, transport.StreamErrorf(codes.Internal, "grpc: failed to find the transport to send the rpc")
+	}
+	t, err := ac.wait(ctx)
+	if err != nil {
+		if put != nil {
+			put()
+		}
+		return nil, nil, err
+	}
+	return t, put, nil
+}
+
+// Close tears down the ClientConn and all underlying connections.
+func (cc *ClientConn) Close() error {
+	cc.mu.Lock()
+	if cc.conns == nil {
+		cc.mu.Unlock()
+		return ErrClientConnClosing
+	}
+	conns := cc.conns
+	cc.conns = nil
+	cc.mu.Unlock()
+	cc.balancer.Close()
+	for _, ac := range conns {
+		ac.tearDown(ErrClientConnClosing)
+	}
+	return nil
+}
+
+// addrConn is a network connection to a given address.
+type addrConn struct {
+	cc           *ClientConn
+	addr         Address
+	dopts        dialOptions
+	shutdownChan chan struct{}
+	events       trace.EventLog
+
+	mu      sync.Mutex
+	state   ConnectivityState
+	stateCV *sync.Cond
+	down    func(error) // the handler called when a connection is down.
+	// ready is closed and becomes nil when a new transport is up or failed
+	// due to timeout.
+	ready     chan struct{}
+	transport transport.ClientTransport
+}
+
+// printf records an event in ac's event log, unless ac has been closed.
+// REQUIRES ac.mu is held.
+func (ac *addrConn) printf(format string, a ...interface{}) {
+	if ac.events != nil {
+		ac.events.Printf(format, a...)
+	}
+}
+
+// errorf records an error in ac's event log, unless ac has been closed.
+// REQUIRES ac.mu is held.
+func (ac *addrConn) errorf(format string, a ...interface{}) {
+	if ac.events != nil {
+		ac.events.Errorf(format, a...)
+	}
+}
+
+// getState returns the connectivity state of the Conn
+func (ac *addrConn) getState() ConnectivityState {
+	ac.mu.Lock()
+	defer ac.mu.Unlock()
+	return ac.state
+}
+
+// waitForStateChange blocks until the state changes to something other than the sourceState.
+func (ac *addrConn) waitForStateChange(ctx context.Context, sourceState ConnectivityState) (ConnectivityState, error) {
+	ac.mu.Lock()
+	defer ac.mu.Unlock()
+	if sourceState != ac.state {
+		return ac.state, nil
+	}
+	done := make(chan struct{})
+	var err error
+	go func() {
+		select {
+		case <-ctx.Done():
+			ac.mu.Lock()
+			err = ctx.Err()
+			ac.stateCV.Broadcast()
+			ac.mu.Unlock()
+		case <-done:
+		}
+	}()
+	defer close(done)
+	for sourceState == ac.state {
+		ac.stateCV.Wait()
+		if err != nil {
+			return ac.state, err
+		}
+	}
+	return ac.state, nil
+}
+
+func (ac *addrConn) resetTransport(closeTransport bool) error {
+	var retries int
+	start := time.Now()
+	for {
+		ac.mu.Lock()
+		ac.printf("connecting")
+		if ac.state == Shutdown {
+			// ac.tearDown(...) has been invoked.
+			ac.mu.Unlock()
+			return errConnClosing
+		}
+		if ac.down != nil {
+			ac.down(downErrorf(false, true, "%v", errNetworkIO))
+			ac.down = nil
+		}
+		ac.state = Connecting
+		ac.stateCV.Broadcast()
+		t := ac.transport
+		ac.mu.Unlock()
+		if closeTransport && t != nil {
+			t.Close()
+		}
+		// Adjust timeout for the current try.
+		copts := ac.dopts.copts
+		if copts.Timeout < 0 {
+			ac.tearDown(errClientConnTimeout)
+			return errClientConnTimeout
+		}
+		if copts.Timeout > 0 {
+			copts.Timeout -= time.Since(start)
+			if copts.Timeout <= 0 {
+				ac.tearDown(errClientConnTimeout)
+				return errClientConnTimeout
+			}
+		}
+		sleepTime := ac.dopts.bs.backoff(retries)
+		timeout := sleepTime
+		if timeout < minConnectTimeout {
+			timeout = minConnectTimeout
+		}
+		if copts.Timeout == 0 || copts.Timeout > timeout {
+			copts.Timeout = timeout
+		}
+		connectTime := time.Now()
+		newTransport, err := transport.NewClientTransport(ac.addr.Addr, &copts)
+		if err != nil {
+			ac.mu.Lock()
+			if ac.state == Shutdown {
+				// ac.tearDown(...) has been invoked.
+				ac.mu.Unlock()
+				return errConnClosing
+			}
+			ac.errorf("transient failure: %v", err)
+			ac.state = TransientFailure
+			ac.stateCV.Broadcast()
+			if ac.ready != nil {
+				close(ac.ready)
+				ac.ready = nil
+			}
+			ac.mu.Unlock()
+			sleepTime -= time.Since(connectTime)
+			if sleepTime < 0 {
+				sleepTime = 0
+			}
+			// Fail early before falling into sleep.
+			if ac.dopts.copts.Timeout > 0 && ac.dopts.copts.Timeout < sleepTime+time.Since(start) {
+				ac.mu.Lock()
+				ac.errorf("connection timeout")
+				ac.mu.Unlock()
+				ac.tearDown(errClientConnTimeout)
+				return errClientConnTimeout
+			}
+			closeTransport = false
+			select {
+			case <-time.After(sleepTime):
+			case <-ac.shutdownChan:
+			}
+			retries++
+			grpclog.Printf("grpc: addrConn.resetTransport failed to create client transport: %v; Reconnecting to %q", err, ac.addr)
+			continue
+		}
+		ac.mu.Lock()
+		ac.printf("ready")
+		if ac.state == Shutdown {
+			// ac.tearDown(...) has been invoked.
+			ac.mu.Unlock()
+			newTransport.Close()
+			return errConnClosing
+		}
+		ac.state = Ready
+		ac.stateCV.Broadcast()
+		ac.transport = newTransport
+		if ac.ready != nil {
+			close(ac.ready)
+			ac.ready = nil
+		}
+		ac.down = ac.cc.balancer.Up(ac.addr)
+		ac.mu.Unlock()
+		return nil
+	}
+}
+
+// Run in a goroutine to track the error in transport and create the
+// new transport if an error happens. It returns when the channel is closing.
+func (ac *addrConn) transportMonitor() {
+	for {
+		ac.mu.Lock()
+		t := ac.transport
+		ac.mu.Unlock()
+		select {
+		// shutdownChan is needed to detect the teardown when
+		// the addrConn is idle (i.e., no RPC in flight).
+		case <-ac.shutdownChan:
+			return
+		case <-t.Error():
+			ac.mu.Lock()
+			if ac.state == Shutdown {
+				// ac.tearDown(...) has been invoked.
+				ac.mu.Unlock()
+				return
+			}
+			ac.state = TransientFailure
+			ac.stateCV.Broadcast()
+			ac.mu.Unlock()
+			if err := ac.resetTransport(true); err != nil {
+				ac.mu.Lock()
+				ac.printf("transport exiting: %v", err)
+				ac.mu.Unlock()
+				grpclog.Printf("grpc: addrConn.transportMonitor exits due to: %v", err)
+				return
+			}
+		}
+	}
+}
+
+// wait blocks until i) the new transport is up or ii) ctx is done or iii) ac is closed.
+func (ac *addrConn) wait(ctx context.Context) (transport.ClientTransport, error) {
+	for {
+		ac.mu.Lock()
+		switch {
+		case ac.state == Shutdown:
+			ac.mu.Unlock()
+			return nil, errConnClosing
+		case ac.state == Ready:
+			ct := ac.transport
+			ac.mu.Unlock()
+			return ct, nil
+		default:
+			ready := ac.ready
+			if ready == nil {
+				ready = make(chan struct{})
+				ac.ready = ready
+			}
+			ac.mu.Unlock()
+			select {
+			case <-ctx.Done():
+				return nil, transport.ContextErr(ctx.Err())
+			// Wait until the new transport is ready or failed.
+			case <-ready:
+			}
+		}
+	}
+}
+
+// tearDown starts to tear down the addrConn.
+// TODO(zhaoq): Make this synchronous to avoid unbounded memory consumption in
+// some edge cases (e.g., the caller opens and closes many addrConn's in a
+// tight loop.
+func (ac *addrConn) tearDown(err error) {
+	ac.mu.Lock()
+	defer func() {
+		ac.mu.Unlock()
+		ac.cc.mu.Lock()
+		if ac.cc.conns != nil {
+			delete(ac.cc.conns, ac.addr)
+		}
+		ac.cc.mu.Unlock()
+	}()
+	if ac.state == Shutdown {
+		return
+	}
+	ac.state = Shutdown
+	if ac.down != nil {
+		ac.down(downErrorf(false, false, "%v", err))
+		ac.down = nil
+	}
+	ac.stateCV.Broadcast()
+	if ac.events != nil {
+		ac.events.Finish()
+		ac.events = nil
+	}
+	if ac.ready != nil {
+		close(ac.ready)
+		ac.ready = nil
+	}
+	if ac.transport != nil {
+		if err == errConnDrain {
+			ac.transport.GracefulClose()
+		} else {
+			ac.transport.Close()
+		}
+	}
+	if ac.shutdownChan != nil {
+		close(ac.shutdownChan)
+	}
+	return
+}
diff --git a/vendor/google.golang.org/grpc/codegen.sh b/vendor/google.golang.org/grpc/codegen.sh
new file mode 100755
index 0000000..b009488
--- /dev/null
+++ b/vendor/google.golang.org/grpc/codegen.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# This script serves as an example to demonstrate how to generate the gRPC-Go
+# interface and the related messages from .proto file.
+#
+# It assumes the installation of i) Google proto buffer compiler at
+# https://github.com/google/protobuf (after v2.6.1) and ii) the Go codegen
+# plugin at https://github.com/golang/protobuf (after 2015-02-20). If you have
+# not, please install them first.
+#
+# We recommend running this script at $GOPATH/src.
+#
+# If this is not what you need, feel free to make your own scripts. Again, this
+# script is for demonstration purpose.
+#
+proto=$1
+protoc --go_out=plugins=grpc:. $proto
diff --git a/vendor/google.golang.org/grpc/codes/code_string.go b/vendor/google.golang.org/grpc/codes/code_string.go
new file mode 100644
index 0000000..e6762d0
--- /dev/null
+++ b/vendor/google.golang.org/grpc/codes/code_string.go
@@ -0,0 +1,16 @@
+// generated by stringer -type=Code; DO NOT EDIT
+
+package codes
+
+import "fmt"
+
+const _Code_name = "OKCanceledUnknownInvalidArgumentDeadlineExceededNotFoundAlreadyExistsPermissionDeniedResourceExhaustedFailedPreconditionAbortedOutOfRangeUnimplementedInternalUnavailableDataLossUnauthenticated"
+
+var _Code_index = [...]uint8{0, 2, 10, 17, 32, 48, 56, 69, 85, 102, 120, 127, 137, 150, 158, 169, 177, 192}
+
+func (i Code) String() string {
+	if i+1 >= Code(len(_Code_index)) {
+		return fmt.Sprintf("Code(%d)", i)
+	}
+	return _Code_name[_Code_index[i]:_Code_index[i+1]]
+}
diff --git a/vendor/google.golang.org/grpc/codes/codes.go b/vendor/google.golang.org/grpc/codes/codes.go
new file mode 100644
index 0000000..e14b464
--- /dev/null
+++ b/vendor/google.golang.org/grpc/codes/codes.go
@@ -0,0 +1,159 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package codes defines the canonical error codes used by gRPC. It is
+// consistent across various languages.
+package codes // import "google.golang.org/grpc/codes"
+
+// A Code is an unsigned 32-bit error code as defined in the gRPC spec.
+type Code uint32
+
+//go:generate stringer -type=Code
+
+const (
+	// OK is returned on success.
+	OK Code = 0
+
+	// Canceled indicates the operation was cancelled (typically by the caller).
+	Canceled Code = 1
+
+	// Unknown error.  An example of where this error may be returned is
+	// if a Status value received from another address space belongs to
+	// an error-space that is not known in this address space.  Also
+	// errors raised by APIs that do not return enough error information
+	// may be converted to this error.
+	Unknown Code = 2
+
+	// InvalidArgument indicates client specified an invalid argument.
+	// Note that this differs from FailedPrecondition. It indicates arguments
+	// that are problematic regardless of the state of the system
+	// (e.g., a malformed file name).
+	InvalidArgument Code = 3
+
+	// DeadlineExceeded means operation expired before completion.
+	// For operations that change the state of the system, this error may be
+	// returned even if the operation has completed successfully. For
+	// example, a successful response from a server could have been delayed
+	// long enough for the deadline to expire.
+	DeadlineExceeded Code = 4
+
+	// NotFound means some requested entity (e.g., file or directory) was
+	// not found.
+	NotFound Code = 5
+
+	// AlreadyExists means an attempt to create an entity failed because one
+	// already exists.
+	AlreadyExists Code = 6
+
+	// PermissionDenied indicates the caller does not have permission to
+	// execute the specified operation. It must not be used for rejections
+	// caused by exhausting some resource (use ResourceExhausted
+	// instead for those errors).  It must not be
+	// used if the caller cannot be identified (use Unauthenticated
+	// instead for those errors).
+	PermissionDenied Code = 7
+
+	// Unauthenticated indicates the request does not have valid
+	// authentication credentials for the operation.
+	Unauthenticated Code = 16
+
+	// ResourceExhausted indicates some resource has been exhausted, perhaps
+	// a per-user quota, or perhaps the entire file system is out of space.
+	ResourceExhausted Code = 8
+
+	// FailedPrecondition indicates operation was rejected because the
+	// system is not in a state required for the operation's execution.
+	// For example, directory to be deleted may be non-empty, an rmdir
+	// operation is applied to a non-directory, etc.
+	//
+	// A litmus test that may help a service implementor in deciding
+	// between FailedPrecondition, Aborted, and Unavailable:
+	//  (a) Use Unavailable if the client can retry just the failing call.
+	//  (b) Use Aborted if the client should retry at a higher-level
+	//      (e.g., restarting a read-modify-write sequence).
+	//  (c) Use FailedPrecondition if the client should not retry until
+	//      the system state has been explicitly fixed.  E.g., if an "rmdir"
+	//      fails because the directory is non-empty, FailedPrecondition
+	//      should be returned since the client should not retry unless
+	//      they have first fixed up the directory by deleting files from it.
+	//  (d) Use FailedPrecondition if the client performs conditional
+	//      REST Get/Update/Delete on a resource and the resource on the
+	//      server does not match the condition. E.g., conflicting
+	//      read-modify-write on the same resource.
+	FailedPrecondition Code = 9
+
+	// Aborted indicates the operation was aborted, typically due to a
+	// concurrency issue like sequencer check failures, transaction aborts,
+	// etc.
+	//
+	// See litmus test above for deciding between FailedPrecondition,
+	// Aborted, and Unavailable.
+	Aborted Code = 10
+
+	// OutOfRange means operation was attempted past the valid range.
+	// E.g., seeking or reading past end of file.
+	//
+	// Unlike InvalidArgument, this error indicates a problem that may
+	// be fixed if the system state changes. For example, a 32-bit file
+	// system will generate InvalidArgument if asked to read at an
+	// offset that is not in the range [0,2^32-1], but it will generate
+	// OutOfRange if asked to read from an offset past the current
+	// file size.
+	//
+	// There is a fair bit of overlap between FailedPrecondition and
+	// OutOfRange.  We recommend using OutOfRange (the more specific
+	// error) when it applies so that callers who are iterating through
+	// a space can easily look for an OutOfRange error to detect when
+	// they are done.
+	OutOfRange Code = 11
+
+	// Unimplemented indicates operation is not implemented or not
+	// supported/enabled in this service.
+	Unimplemented Code = 12
+
+	// Internal errors.  Means some invariants expected by underlying
+	// system has been broken.  If you see one of these errors,
+	// something is very broken.
+	Internal Code = 13
+
+	// Unavailable indicates the service is currently unavailable.
+	// This is a most likely a transient condition and may be corrected
+	// by retrying with a backoff.
+	//
+	// See litmus test above for deciding between FailedPrecondition,
+	// Aborted, and Unavailable.
+	Unavailable Code = 14
+
+	// DataLoss indicates unrecoverable data loss or corruption.
+	DataLoss Code = 15
+)
diff --git a/vendor/google.golang.org/grpc/coverage.sh b/vendor/google.golang.org/grpc/coverage.sh
new file mode 100755
index 0000000..1202353
--- /dev/null
+++ b/vendor/google.golang.org/grpc/coverage.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+set -e
+
+workdir=.cover
+profile="$workdir/cover.out"
+mode=set
+end2endtest="google.golang.org/grpc/test"
+
+generate_cover_data() {
+    rm -rf "$workdir"
+    mkdir "$workdir"
+
+    for pkg in "$@"; do
+        if [ $pkg == "google.golang.org/grpc" -o $pkg == "google.golang.org/grpc/transport" -o $pkg == "google.golang.org/grpc/metadata" -o $pkg == "google.golang.org/grpc/credentials" ]
+            then
+                f="$workdir/$(echo $pkg | tr / -)"
+                go test -covermode="$mode" -coverprofile="$f.cover" "$pkg"
+                go test -covermode="$mode" -coverpkg "$pkg" -coverprofile="$f.e2e.cover" "$end2endtest"
+        fi
+    done
+
+    echo "mode: $mode" >"$profile"
+    grep -h -v "^mode:" "$workdir"/*.cover >>"$profile"
+}
+
+show_cover_report() {
+    go tool cover -${1}="$profile"
+}
+
+push_to_coveralls() {
+    goveralls -coverprofile="$profile"
+}
+
+generate_cover_data $(go list ./...)
+show_cover_report func
+case "$1" in
+"")
+    ;;
+--html)
+    show_cover_report html ;;
+--coveralls)
+    push_to_coveralls ;;
+*)
+    echo >&2 "error: invalid option: $1" ;;
+esac
+rm -rf "$workdir"
diff --git a/vendor/google.golang.org/grpc/credentials/credentials.go b/vendor/google.golang.org/grpc/credentials/credentials.go
new file mode 100644
index 0000000..681f64e
--- /dev/null
+++ b/vendor/google.golang.org/grpc/credentials/credentials.go
@@ -0,0 +1,226 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package credentials implements various credentials supported by gRPC library,
+// which encapsulate all the state needed by a client to authenticate with a
+// server and make various assertions, e.g., about the client's identity, role,
+// or whether it is authorized to make a particular call.
+package credentials // import "google.golang.org/grpc/credentials"
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"fmt"
+	"io/ioutil"
+	"net"
+	"strings"
+	"time"
+
+	"golang.org/x/net/context"
+)
+
+var (
+	// alpnProtoStr are the specified application level protocols for gRPC.
+	alpnProtoStr = []string{"h2"}
+)
+
+// Credentials defines the common interface all supported credentials must
+// implement.
+type Credentials interface {
+	// GetRequestMetadata gets the current request metadata, refreshing
+	// tokens if required. This should be called by the transport layer on
+	// each request, and the data should be populated in headers or other
+	// context. uri is the URI of the entry point for the request. When
+	// supported by the underlying implementation, ctx can be used for
+	// timeout and cancellation.
+	// TODO(zhaoq): Define the set of the qualified keys instead of leaving
+	// it as an arbitrary string.
+	GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error)
+	// RequireTransportSecurity indicates whether the credentails requires
+	// transport security.
+	RequireTransportSecurity() bool
+}
+
+// ProtocolInfo provides information regarding the gRPC wire protocol version,
+// security protocol, security protocol version in use, etc.
+type ProtocolInfo struct {
+	// ProtocolVersion is the gRPC wire protocol version.
+	ProtocolVersion string
+	// SecurityProtocol is the security protocol in use.
+	SecurityProtocol string
+	// SecurityVersion is the security protocol version.
+	SecurityVersion string
+}
+
+// AuthInfo defines the common interface for the auth information the users are interested in.
+type AuthInfo interface {
+	AuthType() string
+}
+
+// TransportAuthenticator defines the common interface for all the live gRPC wire
+// protocols and supported transport security protocols (e.g., TLS, SSL).
+type TransportAuthenticator interface {
+	// ClientHandshake does the authentication handshake specified by the corresponding
+	// authentication protocol on rawConn for clients. It returns the authenticated
+	// connection and the corresponding auth information about the connection.
+	ClientHandshake(addr string, rawConn net.Conn, timeout time.Duration) (net.Conn, AuthInfo, error)
+	// ServerHandshake does the authentication handshake for servers. It returns
+	// the authenticated connection and the corresponding auth information about
+	// the connection.
+	ServerHandshake(rawConn net.Conn) (net.Conn, AuthInfo, error)
+	// Info provides the ProtocolInfo of this TransportAuthenticator.
+	Info() ProtocolInfo
+	Credentials
+}
+
+// TLSInfo contains the auth information for a TLS authenticated connection.
+// It implements the AuthInfo interface.
+type TLSInfo struct {
+	State tls.ConnectionState
+}
+
+func (t TLSInfo) AuthType() string {
+	return "tls"
+}
+
+// tlsCreds is the credentials required for authenticating a connection using TLS.
+type tlsCreds struct {
+	// TLS configuration
+	config tls.Config
+}
+
+func (c tlsCreds) Info() ProtocolInfo {
+	return ProtocolInfo{
+		SecurityProtocol: "tls",
+		SecurityVersion:  "1.2",
+	}
+}
+
+// GetRequestMetadata returns nil, nil since TLS credentials does not have
+// metadata.
+func (c *tlsCreds) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
+	return nil, nil
+}
+
+func (c *tlsCreds) RequireTransportSecurity() bool {
+	return true
+}
+
+type timeoutError struct{}
+
+func (timeoutError) Error() string   { return "credentials: Dial timed out" }
+func (timeoutError) Timeout() bool   { return true }
+func (timeoutError) Temporary() bool { return true }
+
+func (c *tlsCreds) ClientHandshake(addr string, rawConn net.Conn, timeout time.Duration) (_ net.Conn, _ AuthInfo, err error) {
+	// borrow some code from tls.DialWithDialer
+	var errChannel chan error
+	if timeout != 0 {
+		errChannel = make(chan error, 2)
+		time.AfterFunc(timeout, func() {
+			errChannel <- timeoutError{}
+		})
+	}
+	if c.config.ServerName == "" {
+		colonPos := strings.LastIndex(addr, ":")
+		if colonPos == -1 {
+			colonPos = len(addr)
+		}
+		c.config.ServerName = addr[:colonPos]
+	}
+	conn := tls.Client(rawConn, &c.config)
+	if timeout == 0 {
+		err = conn.Handshake()
+	} else {
+		go func() {
+			errChannel <- conn.Handshake()
+		}()
+		err = <-errChannel
+	}
+	if err != nil {
+		rawConn.Close()
+		return nil, nil, err
+	}
+	// TODO(zhaoq): Omit the auth info for client now. It is more for
+	// information than anything else.
+	return conn, nil, nil
+}
+
+func (c *tlsCreds) ServerHandshake(rawConn net.Conn) (net.Conn, AuthInfo, error) {
+	conn := tls.Server(rawConn, &c.config)
+	if err := conn.Handshake(); err != nil {
+		rawConn.Close()
+		return nil, nil, err
+	}
+	return conn, TLSInfo{conn.ConnectionState()}, nil
+}
+
+// NewTLS uses c to construct a TransportAuthenticator based on TLS.
+func NewTLS(c *tls.Config) TransportAuthenticator {
+	tc := &tlsCreds{*c}
+	tc.config.NextProtos = alpnProtoStr
+	return tc
+}
+
+// NewClientTLSFromCert constructs a TLS from the input certificate for client.
+func NewClientTLSFromCert(cp *x509.CertPool, serverName string) TransportAuthenticator {
+	return NewTLS(&tls.Config{ServerName: serverName, RootCAs: cp})
+}
+
+// NewClientTLSFromFile constructs a TLS from the input certificate file for client.
+func NewClientTLSFromFile(certFile, serverName string) (TransportAuthenticator, error) {
+	b, err := ioutil.ReadFile(certFile)
+	if err != nil {
+		return nil, err
+	}
+	cp := x509.NewCertPool()
+	if !cp.AppendCertsFromPEM(b) {
+		return nil, fmt.Errorf("credentials: failed to append certificates")
+	}
+	return NewTLS(&tls.Config{ServerName: serverName, RootCAs: cp}), nil
+}
+
+// NewServerTLSFromCert constructs a TLS from the input certificate for server.
+func NewServerTLSFromCert(cert *tls.Certificate) TransportAuthenticator {
+	return NewTLS(&tls.Config{Certificates: []tls.Certificate{*cert}})
+}
+
+// NewServerTLSFromFile constructs a TLS from the input certificate file and key
+// file for server.
+func NewServerTLSFromFile(certFile, keyFile string) (TransportAuthenticator, error) {
+	cert, err := tls.LoadX509KeyPair(certFile, keyFile)
+	if err != nil {
+		return nil, err
+	}
+	return NewTLS(&tls.Config{Certificates: []tls.Certificate{cert}}), nil
+}
diff --git a/vendor/google.golang.org/grpc/credentials/oauth/oauth.go b/vendor/google.golang.org/grpc/credentials/oauth/oauth.go
new file mode 100644
index 0000000..04943fd
--- /dev/null
+++ b/vendor/google.golang.org/grpc/credentials/oauth/oauth.go
@@ -0,0 +1,177 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package oauth implements gRPC credentials using OAuth.
+package oauth
+
+import (
+	"fmt"
+	"io/ioutil"
+
+	"golang.org/x/net/context"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/google"
+	"golang.org/x/oauth2/jwt"
+	"google.golang.org/grpc/credentials"
+)
+
+// TokenSource supplies credentials from an oauth2.TokenSource.
+type TokenSource struct {
+	oauth2.TokenSource
+}
+
+// GetRequestMetadata gets the request metadata as a map from a TokenSource.
+func (ts TokenSource) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
+	token, err := ts.Token()
+	if err != nil {
+		return nil, err
+	}
+	return map[string]string{
+		"authorization": token.TokenType + " " + token.AccessToken,
+	}, nil
+}
+
+func (ts TokenSource) RequireTransportSecurity() bool {
+	return true
+}
+
+type jwtAccess struct {
+	jsonKey []byte
+}
+
+func NewJWTAccessFromFile(keyFile string) (credentials.Credentials, error) {
+	jsonKey, err := ioutil.ReadFile(keyFile)
+	if err != nil {
+		return nil, fmt.Errorf("credentials: failed to read the service account key file: %v", err)
+	}
+	return NewJWTAccessFromKey(jsonKey)
+}
+
+func NewJWTAccessFromKey(jsonKey []byte) (credentials.Credentials, error) {
+	return jwtAccess{jsonKey}, nil
+}
+
+func (j jwtAccess) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
+	ts, err := google.JWTAccessTokenSourceFromJSON(j.jsonKey, uri[0])
+	if err != nil {
+		return nil, err
+	}
+	token, err := ts.Token()
+	if err != nil {
+		return nil, err
+	}
+	return map[string]string{
+		"authorization": token.TokenType + " " + token.AccessToken,
+	}, nil
+}
+
+func (j jwtAccess) RequireTransportSecurity() bool {
+	return true
+}
+
+// oauthAccess supplies credentials from a given token.
+type oauthAccess struct {
+	token oauth2.Token
+}
+
+// NewOauthAccess constructs the credentials using a given token.
+func NewOauthAccess(token *oauth2.Token) credentials.Credentials {
+	return oauthAccess{token: *token}
+}
+
+func (oa oauthAccess) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
+	return map[string]string{
+		"authorization": oa.token.TokenType + " " + oa.token.AccessToken,
+	}, nil
+}
+
+func (oa oauthAccess) RequireTransportSecurity() bool {
+	return true
+}
+
+// NewComputeEngine constructs the credentials that fetches access tokens from
+// Google Compute Engine (GCE)'s metadata server. It is only valid to use this
+// if your program is running on a GCE instance.
+// TODO(dsymonds): Deprecate and remove this.
+func NewComputeEngine() credentials.Credentials {
+	return TokenSource{google.ComputeTokenSource("")}
+}
+
+// serviceAccount represents credentials via JWT signing key.
+type serviceAccount struct {
+	config *jwt.Config
+}
+
+func (s serviceAccount) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
+	token, err := s.config.TokenSource(ctx).Token()
+	if err != nil {
+		return nil, err
+	}
+	return map[string]string{
+		"authorization": token.TokenType + " " + token.AccessToken,
+	}, nil
+}
+
+func (s serviceAccount) RequireTransportSecurity() bool {
+	return true
+}
+
+// NewServiceAccountFromKey constructs the credentials using the JSON key slice
+// from a Google Developers service account.
+func NewServiceAccountFromKey(jsonKey []byte, scope ...string) (credentials.Credentials, error) {
+	config, err := google.JWTConfigFromJSON(jsonKey, scope...)
+	if err != nil {
+		return nil, err
+	}
+	return serviceAccount{config: config}, nil
+}
+
+// NewServiceAccountFromFile constructs the credentials using the JSON key file
+// of a Google Developers service account.
+func NewServiceAccountFromFile(keyFile string, scope ...string) (credentials.Credentials, error) {
+	jsonKey, err := ioutil.ReadFile(keyFile)
+	if err != nil {
+		return nil, fmt.Errorf("credentials: failed to read the service account key file: %v", err)
+	}
+	return NewServiceAccountFromKey(jsonKey, scope...)
+}
+
+// NewApplicationDefault returns "Application Default Credentials". For more
+// detail, see https://developers.google.com/accounts/docs/application-default-credentials.
+func NewApplicationDefault(ctx context.Context, scope ...string) (credentials.Credentials, error) {
+	t, err := google.DefaultTokenSource(ctx, scope...)
+	if err != nil {
+		return nil, err
+	}
+	return TokenSource{t}, nil
+}
diff --git a/vendor/google.golang.org/grpc/doc.go b/vendor/google.golang.org/grpc/doc.go
new file mode 100644
index 0000000..a35f218
--- /dev/null
+++ b/vendor/google.golang.org/grpc/doc.go
@@ -0,0 +1,6 @@
+/*
+Package grpc implements an RPC system called gRPC.
+
+See www.grpc.io for more information about gRPC.
+*/
+package grpc // import "google.golang.org/grpc"
diff --git a/vendor/google.golang.org/grpc/grpclog/logger.go b/vendor/google.golang.org/grpc/grpclog/logger.go
new file mode 100644
index 0000000..3b29330
--- /dev/null
+++ b/vendor/google.golang.org/grpc/grpclog/logger.go
@@ -0,0 +1,93 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+Package grpclog defines logging for grpc.
+*/
+package grpclog // import "google.golang.org/grpc/grpclog"
+
+import (
+	"log"
+	"os"
+)
+
+// Use golang's standard logger by default.
+// Access is not mutex-protected: do not modify except in init()
+// functions.
+var logger Logger = log.New(os.Stderr, "", log.LstdFlags)
+
+// Logger mimics golang's standard Logger as an interface.
+type Logger interface {
+	Fatal(args ...interface{})
+	Fatalf(format string, args ...interface{})
+	Fatalln(args ...interface{})
+	Print(args ...interface{})
+	Printf(format string, args ...interface{})
+	Println(args ...interface{})
+}
+
+// SetLogger sets the logger that is used in grpc. Call only from
+// init() functions.
+func SetLogger(l Logger) {
+	logger = l
+}
+
+// Fatal is equivalent to Print() followed by a call to os.Exit() with a non-zero exit code.
+func Fatal(args ...interface{}) {
+	logger.Fatal(args...)
+}
+
+// Fatalf is equivalent to Printf() followed by a call to os.Exit() with a non-zero exit code.
+func Fatalf(format string, args ...interface{}) {
+	logger.Fatalf(format, args...)
+}
+
+// Fatalln is equivalent to Println() followed by a call to os.Exit()) with a non-zero exit code.
+func Fatalln(args ...interface{}) {
+	logger.Fatalln(args...)
+}
+
+// Print prints to the logger. Arguments are handled in the manner of fmt.Print.
+func Print(args ...interface{}) {
+	logger.Print(args...)
+}
+
+// Printf prints to the logger. Arguments are handled in the manner of fmt.Printf.
+func Printf(format string, args ...interface{}) {
+	logger.Printf(format, args...)
+}
+
+// Println prints to the logger. Arguments are handled in the manner of fmt.Println.
+func Println(args ...interface{}) {
+	logger.Println(args...)
+}
diff --git a/vendor/google.golang.org/grpc/interceptor.go b/vendor/google.golang.org/grpc/interceptor.go
new file mode 100644
index 0000000..588f59e
--- /dev/null
+++ b/vendor/google.golang.org/grpc/interceptor.go
@@ -0,0 +1,74 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"golang.org/x/net/context"
+)
+
+// UnaryServerInfo consists of various information about a unary RPC on
+// server side. All per-rpc information may be mutated by the interceptor.
+type UnaryServerInfo struct {
+	// Server is the service implementation the user provides. This is read-only.
+	Server interface{}
+	// FullMethod is the full RPC method string, i.e., /package.service/method.
+	FullMethod string
+}
+
+// UnaryHandler defines the handler invoked by UnaryServerInterceptor to complete the normal
+// execution of a unary RPC.
+type UnaryHandler func(ctx context.Context, req interface{}) (interface{}, error)
+
+// UnaryServerInterceptor provides a hook to intercept the execution of a unary RPC on the server. info
+// contains all the information of this RPC the interceptor can operate on. And handler is the wrapper
+// of the service method implementation. It is the responsibility of the interceptor to invoke handler
+// to complete the RPC.
+type UnaryServerInterceptor func(ctx context.Context, req interface{}, info *UnaryServerInfo, handler UnaryHandler) (resp interface{}, err error)
+
+// StreamServerInfo consists of various information about a streaming RPC on
+// server side. All per-rpc information may be mutated by the interceptor.
+type StreamServerInfo struct {
+	// FullMethod is the full RPC method string, i.e., /package.service/method.
+	FullMethod string
+	// IsClientStream indicates whether the RPC is a client streaming RPC.
+	IsClientStream bool
+	// IsServerStream indicates whether the RPC is a server streaming RPC.
+	IsServerStream bool
+}
+
+// StreamServerInterceptor provides a hook to intercept the execution of a streaming RPC on the server.
+// info contains all the information of this RPC the interceptor can operate on. And handler is the
+// service method implementation. It is the responsibility of the interceptor to invoke handler to
+// complete the RPC.
+type StreamServerInterceptor func(srv interface{}, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error
diff --git a/vendor/google.golang.org/grpc/internal/internal.go b/vendor/google.golang.org/grpc/internal/internal.go
new file mode 100644
index 0000000..5489143
--- /dev/null
+++ b/vendor/google.golang.org/grpc/internal/internal.go
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package internal contains gRPC-internal code for testing, to avoid polluting
+// the godoc of the top-level grpc package.
+package internal
+
+// TestingCloseConns closes all existing transports but keeps
+// grpcServer.lis accepting new connections.
+//
+// The provided grpcServer must be of type *grpc.Server. It is untyped
+// for circular dependency reasons.
+var TestingCloseConns func(grpcServer interface{})
+
+// TestingUseHandlerImpl enables the http.Handler-based server implementation.
+// It must be called before Serve and requires TLS credentials.
+//
+// The provided grpcServer must be of type *grpc.Server. It is untyped
+// for circular dependency reasons.
+var TestingUseHandlerImpl func(grpcServer interface{})
diff --git a/vendor/google.golang.org/grpc/metadata/metadata.go b/vendor/google.golang.org/grpc/metadata/metadata.go
new file mode 100644
index 0000000..52070db
--- /dev/null
+++ b/vendor/google.golang.org/grpc/metadata/metadata.go
@@ -0,0 +1,134 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package metadata define the structure of the metadata supported by gRPC library.
+package metadata // import "google.golang.org/grpc/metadata"
+
+import (
+	"encoding/base64"
+	"fmt"
+	"strings"
+
+	"golang.org/x/net/context"
+)
+
+const (
+	binHdrSuffix = "-bin"
+)
+
+// encodeKeyValue encodes key and value qualified for transmission via gRPC.
+// Transmitting binary headers violates HTTP/2 spec.
+// TODO(zhaoq): Maybe check if k is ASCII also.
+func encodeKeyValue(k, v string) (string, string) {
+	k = strings.ToLower(k)
+	if strings.HasSuffix(k, binHdrSuffix) {
+		val := base64.StdEncoding.EncodeToString([]byte(v))
+		v = string(val)
+	}
+	return k, v
+}
+
+// DecodeKeyValue returns the original key and value corresponding to the
+// encoded data in k, v.
+func DecodeKeyValue(k, v string) (string, string, error) {
+	if !strings.HasSuffix(k, binHdrSuffix) {
+		return k, v, nil
+	}
+	val, err := base64.StdEncoding.DecodeString(v)
+	if err != nil {
+		return "", "", err
+	}
+	return k, string(val), nil
+}
+
+// MD is a mapping from metadata keys to values. Users should use the following
+// two convenience functions New and Pairs to generate MD.
+type MD map[string][]string
+
+// New creates a MD from given key-value map.
+func New(m map[string]string) MD {
+	md := MD{}
+	for k, v := range m {
+		key, val := encodeKeyValue(k, v)
+		md[key] = append(md[key], val)
+	}
+	return md
+}
+
+// Pairs returns an MD formed by the mapping of key, value ...
+// Pairs panics if len(kv) is odd.
+func Pairs(kv ...string) MD {
+	if len(kv)%2 == 1 {
+		panic(fmt.Sprintf("metadata: Pairs got the odd number of input pairs for metadata: %d", len(kv)))
+	}
+	md := MD{}
+	var k string
+	for i, s := range kv {
+		if i%2 == 0 {
+			k = s
+			continue
+		}
+		key, val := encodeKeyValue(k, s)
+		md[key] = append(md[key], val)
+	}
+	return md
+}
+
+// Len returns the number of items in md.
+func (md MD) Len() int {
+	return len(md)
+}
+
+// Copy returns a copy of md.
+func (md MD) Copy() MD {
+	out := MD{}
+	for k, v := range md {
+		for _, i := range v {
+			out[k] = append(out[k], i)
+		}
+	}
+	return out
+}
+
+type mdKey struct{}
+
+// NewContext creates a new context with md attached.
+func NewContext(ctx context.Context, md MD) context.Context {
+	return context.WithValue(ctx, mdKey{}, md)
+}
+
+// FromContext returns the MD in ctx if it exists.
+func FromContext(ctx context.Context) (md MD, ok bool) {
+	md, ok = ctx.Value(mdKey{}).(MD)
+	return
+}
diff --git a/vendor/google.golang.org/grpc/naming/naming.go b/vendor/google.golang.org/grpc/naming/naming.go
new file mode 100644
index 0000000..c2e0871
--- /dev/null
+++ b/vendor/google.golang.org/grpc/naming/naming.go
@@ -0,0 +1,74 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package naming defines the naming API and related data structures for gRPC.
+// The interface is EXPERIMENTAL and may be suject to change.
+package naming
+
+// Operation defines the corresponding operations for a name resolution change.
+type Operation uint8
+
+const (
+	// Add indicates a new address is added.
+	Add Operation = iota
+	// Delete indicates an exisiting address is deleted.
+	Delete
+)
+
+// Update defines a name resolution update. Notice that it is not valid having both
+// empty string Addr and nil Metadata in an Update.
+type Update struct {
+	// Op indicates the operation of the update.
+	Op Operation
+	// Addr is the updated address. It is empty string if there is no address update.
+	Addr string
+	// Metadata is the updated metadata. It is nil if there is no metadata update.
+	// Metadata is not required for a custom naming implementation.
+	Metadata interface{}
+}
+
+// Resolver creates a Watcher for a target to track its resolution changes.
+type Resolver interface {
+	// Resolve creates a Watcher for target.
+	Resolve(target string) (Watcher, error)
+}
+
+// Watcher watches for the updates on the specified target.
+type Watcher interface {
+	// Next blocks until an update or error happens. It may return one or more
+	// updates. The first call should get the full set of the results. It should
+	// return an error if and only if Watcher cannot recover.
+	Next() ([]*Update, error)
+	// Close closes the Watcher.
+	Close()
+}
diff --git a/vendor/google.golang.org/grpc/peer/peer.go b/vendor/google.golang.org/grpc/peer/peer.go
new file mode 100644
index 0000000..bfa6205
--- /dev/null
+++ b/vendor/google.golang.org/grpc/peer/peer.go
@@ -0,0 +1,65 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Package peer defines various peer information associated with RPCs and
+// corresponding utils.
+package peer
+
+import (
+	"net"
+
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/credentials"
+)
+
+// Peer contains the information of the peer for an RPC.
+type Peer struct {
+	// Addr is the peer address.
+	Addr net.Addr
+	// AuthInfo is the authentication information of the transport.
+	// It is nil if there is no transport security being used.
+	AuthInfo credentials.AuthInfo
+}
+
+type peerKey struct{}
+
+// NewContext creates a new context with peer information attached.
+func NewContext(ctx context.Context, p *Peer) context.Context {
+	return context.WithValue(ctx, peerKey{}, p)
+}
+
+// FromContext returns the peer information in ctx if it exists.
+func FromContext(ctx context.Context) (p *Peer, ok bool) {
+	p, ok = ctx.Value(peerKey{}).(*Peer)
+	return
+}
diff --git a/vendor/google.golang.org/grpc/rpc_util.go b/vendor/google.golang.org/grpc/rpc_util.go
new file mode 100644
index 0000000..06544ad
--- /dev/null
+++ b/vendor/google.golang.org/grpc/rpc_util.go
@@ -0,0 +1,415 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"bytes"
+	"compress/gzip"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"math"
+	"os"
+
+	"github.com/golang/protobuf/proto"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/transport"
+)
+
+// Codec defines the interface gRPC uses to encode and decode messages.
+type Codec interface {
+	// Marshal returns the wire format of v.
+	Marshal(v interface{}) ([]byte, error)
+	// Unmarshal parses the wire format into v.
+	Unmarshal(data []byte, v interface{}) error
+	// String returns the name of the Codec implementation. The returned
+	// string will be used as part of content type in transmission.
+	String() string
+}
+
+// protoCodec is a Codec implemetation with protobuf. It is the default codec for gRPC.
+type protoCodec struct{}
+
+func (protoCodec) Marshal(v interface{}) ([]byte, error) {
+	return proto.Marshal(v.(proto.Message))
+}
+
+func (protoCodec) Unmarshal(data []byte, v interface{}) error {
+	return proto.Unmarshal(data, v.(proto.Message))
+}
+
+func (protoCodec) String() string {
+	return "proto"
+}
+
+// Compressor defines the interface gRPC uses to compress a message.
+type Compressor interface {
+	// Do compresses p into w.
+	Do(w io.Writer, p []byte) error
+	// Type returns the compression algorithm the Compressor uses.
+	Type() string
+}
+
+// NewGZIPCompressor creates a Compressor based on GZIP.
+func NewGZIPCompressor() Compressor {
+	return &gzipCompressor{}
+}
+
+type gzipCompressor struct {
+}
+
+func (c *gzipCompressor) Do(w io.Writer, p []byte) error {
+	z := gzip.NewWriter(w)
+	if _, err := z.Write(p); err != nil {
+		return err
+	}
+	return z.Close()
+}
+
+func (c *gzipCompressor) Type() string {
+	return "gzip"
+}
+
+// Decompressor defines the interface gRPC uses to decompress a message.
+type Decompressor interface {
+	// Do reads the data from r and uncompress them.
+	Do(r io.Reader) ([]byte, error)
+	// Type returns the compression algorithm the Decompressor uses.
+	Type() string
+}
+
+type gzipDecompressor struct {
+}
+
+// NewGZIPDecompressor creates a Decompressor based on GZIP.
+func NewGZIPDecompressor() Decompressor {
+	return &gzipDecompressor{}
+}
+
+func (d *gzipDecompressor) Do(r io.Reader) ([]byte, error) {
+	z, err := gzip.NewReader(r)
+	if err != nil {
+		return nil, err
+	}
+	defer z.Close()
+	return ioutil.ReadAll(z)
+}
+
+func (d *gzipDecompressor) Type() string {
+	return "gzip"
+}
+
+// callInfo contains all related configuration and information about an RPC.
+type callInfo struct {
+	failFast  bool
+	headerMD  metadata.MD
+	trailerMD metadata.MD
+	traceInfo traceInfo // in trace.go
+}
+
+// CallOption configures a Call before it starts or extracts information from
+// a Call after it completes.
+type CallOption interface {
+	// before is called before the call is sent to any server.  If before
+	// returns a non-nil error, the RPC fails with that error.
+	before(*callInfo) error
+
+	// after is called after the call has completed.  after cannot return an
+	// error, so any failures should be reported via output parameters.
+	after(*callInfo)
+}
+
+type beforeCall func(c *callInfo) error
+
+func (o beforeCall) before(c *callInfo) error { return o(c) }
+func (o beforeCall) after(c *callInfo)        {}
+
+type afterCall func(c *callInfo)
+
+func (o afterCall) before(c *callInfo) error { return nil }
+func (o afterCall) after(c *callInfo)        { o(c) }
+
+// Header returns a CallOptions that retrieves the header metadata
+// for a unary RPC.
+func Header(md *metadata.MD) CallOption {
+	return afterCall(func(c *callInfo) {
+		*md = c.headerMD
+	})
+}
+
+// Trailer returns a CallOptions that retrieves the trailer metadata
+// for a unary RPC.
+func Trailer(md *metadata.MD) CallOption {
+	return afterCall(func(c *callInfo) {
+		*md = c.trailerMD
+	})
+}
+
+// The format of the payload: compressed or not?
+type payloadFormat uint8
+
+const (
+	compressionNone payloadFormat = iota // no compression
+	compressionMade
+)
+
+// parser reads complelete gRPC messages from the underlying reader.
+type parser struct {
+	// r is the underlying reader.
+	// See the comment on recvMsg for the permissible
+	// error types.
+	r io.Reader
+
+	// The header of a gRPC message. Find more detail
+	// at http://www.grpc.io/docs/guides/wire.html.
+	header [5]byte
+}
+
+// recvMsg reads a complete gRPC message from the stream.
+//
+// It returns the message and its payload (compression/encoding)
+// format. The caller owns the returned msg memory.
+//
+// If there is an error, possible values are:
+//   * io.EOF, when no messages remain
+//   * io.ErrUnexpectedEOF
+//   * of type transport.ConnectionError
+//   * of type transport.StreamError
+// No other error values or types must be returned, which also means
+// that the underlying io.Reader must not return an incompatible
+// error.
+func (p *parser) recvMsg() (pf payloadFormat, msg []byte, err error) {
+	if _, err := io.ReadFull(p.r, p.header[:]); err != nil {
+		return 0, nil, err
+	}
+
+	pf = payloadFormat(p.header[0])
+	length := binary.BigEndian.Uint32(p.header[1:])
+
+	if length == 0 {
+		return pf, nil, nil
+	}
+	// TODO(bradfitz,zhaoq): garbage. reuse buffer after proto decoding instead
+	// of making it for each message:
+	msg = make([]byte, int(length))
+	if _, err := io.ReadFull(p.r, msg); err != nil {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+		return 0, nil, err
+	}
+	return pf, msg, nil
+}
+
+// encode serializes msg and prepends the message header. If msg is nil, it
+// generates the message header of 0 message length.
+func encode(c Codec, msg interface{}, cp Compressor, cbuf *bytes.Buffer) ([]byte, error) {
+	var b []byte
+	var length uint
+	if msg != nil {
+		var err error
+		// TODO(zhaoq): optimize to reduce memory alloc and copying.
+		b, err = c.Marshal(msg)
+		if err != nil {
+			return nil, err
+		}
+		if cp != nil {
+			if err := cp.Do(cbuf, b); err != nil {
+				return nil, err
+			}
+			b = cbuf.Bytes()
+		}
+		length = uint(len(b))
+	}
+	if length > math.MaxUint32 {
+		return nil, Errorf(codes.InvalidArgument, "grpc: message too large (%d bytes)", length)
+	}
+
+	const (
+		payloadLen = 1
+		sizeLen    = 4
+	)
+
+	var buf = make([]byte, payloadLen+sizeLen+len(b))
+
+	// Write payload format
+	if cp == nil {
+		buf[0] = byte(compressionNone)
+	} else {
+		buf[0] = byte(compressionMade)
+	}
+	// Write length of b into buf
+	binary.BigEndian.PutUint32(buf[1:], uint32(length))
+	// Copy encoded msg to buf
+	copy(buf[5:], b)
+
+	return buf, nil
+}
+
+func checkRecvPayload(pf payloadFormat, recvCompress string, dc Decompressor) error {
+	switch pf {
+	case compressionNone:
+	case compressionMade:
+		if dc == nil || recvCompress != dc.Type() {
+			return transport.StreamErrorf(codes.Unimplemented, "grpc: Decompressor is not installed for grpc-encoding %q", recvCompress)
+		}
+	default:
+		return transport.StreamErrorf(codes.Internal, "grpc: received unexpected payload format %d", pf)
+	}
+	return nil
+}
+
+func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}) error {
+	pf, d, err := p.recvMsg()
+	if err != nil {
+		return err
+	}
+	if err := checkRecvPayload(pf, s.RecvCompress(), dc); err != nil {
+		return err
+	}
+	if pf == compressionMade {
+		d, err = dc.Do(bytes.NewReader(d))
+		if err != nil {
+			return transport.StreamErrorf(codes.Internal, "grpc: failed to decompress the received message %v", err)
+		}
+	}
+	if err := c.Unmarshal(d, m); err != nil {
+		return transport.StreamErrorf(codes.Internal, "grpc: failed to unmarshal the received message %v", err)
+	}
+	return nil
+}
+
+// rpcError defines the status from an RPC.
+type rpcError struct {
+	code codes.Code
+	desc string
+}
+
+func (e rpcError) Error() string {
+	return fmt.Sprintf("rpc error: code = %d desc = %s", e.code, e.desc)
+}
+
+// Code returns the error code for err if it was produced by the rpc system.
+// Otherwise, it returns codes.Unknown.
+func Code(err error) codes.Code {
+	if err == nil {
+		return codes.OK
+	}
+	if e, ok := err.(rpcError); ok {
+		return e.code
+	}
+	return codes.Unknown
+}
+
+// ErrorDesc returns the error description of err if it was produced by the rpc system.
+// Otherwise, it returns err.Error() or empty string when err is nil.
+func ErrorDesc(err error) string {
+	if err == nil {
+		return ""
+	}
+	if e, ok := err.(rpcError); ok {
+		return e.desc
+	}
+	return err.Error()
+}
+
+// Errorf returns an error containing an error code and a description;
+// Errorf returns nil if c is OK.
+func Errorf(c codes.Code, format string, a ...interface{}) error {
+	if c == codes.OK {
+		return nil
+	}
+	return rpcError{
+		code: c,
+		desc: fmt.Sprintf(format, a...),
+	}
+}
+
+// toRPCErr converts an error into a rpcError.
+func toRPCErr(err error) error {
+	switch e := err.(type) {
+	case rpcError:
+		return err
+	case transport.StreamError:
+		return rpcError{
+			code: e.Code,
+			desc: e.Desc,
+		}
+	case transport.ConnectionError:
+		return rpcError{
+			code: codes.Internal,
+			desc: e.Desc,
+		}
+	}
+	return Errorf(codes.Unknown, "%v", err)
+}
+
+// convertCode converts a standard Go error into its canonical code. Note that
+// this is only used to translate the error returned by the server applications.
+func convertCode(err error) codes.Code {
+	switch err {
+	case nil:
+		return codes.OK
+	case io.EOF:
+		return codes.OutOfRange
+	case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
+		return codes.FailedPrecondition
+	case os.ErrInvalid:
+		return codes.InvalidArgument
+	case context.Canceled:
+		return codes.Canceled
+	case context.DeadlineExceeded:
+		return codes.DeadlineExceeded
+	}
+	switch {
+	case os.IsExist(err):
+		return codes.AlreadyExists
+	case os.IsNotExist(err):
+		return codes.NotFound
+	case os.IsPermission(err):
+		return codes.PermissionDenied
+	}
+	return codes.Unknown
+}
+
+// SupportPackageIsVersion2 is referenced from generated protocol buffer files
+// to assert that that code is compatible with this version of the grpc package.
+//
+// This constant may be renamed in the future if a change in the generated code
+// requires a synchronised update of grpc-go and protoc-gen-go. This constant
+// should not be referenced from any other code.
+const SupportPackageIsVersion2 = true
diff --git a/vendor/google.golang.org/grpc/server.go b/vendor/google.golang.org/grpc/server.go
new file mode 100644
index 0000000..bfb9c60
--- /dev/null
+++ b/vendor/google.golang.org/grpc/server.go
@@ -0,0 +1,787 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"reflect"
+	"runtime"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/http2"
+	"golang.org/x/net/trace"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/internal"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/transport"
+)
+
+type methodHandler func(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor UnaryServerInterceptor) (interface{}, error)
+
+// MethodDesc represents an RPC service's method specification.
+type MethodDesc struct {
+	MethodName string
+	Handler    methodHandler
+}
+
+// ServiceDesc represents an RPC service's specification.
+type ServiceDesc struct {
+	ServiceName string
+	// The pointer to the service interface. Used to check whether the user
+	// provided implementation satisfies the interface requirements.
+	HandlerType interface{}
+	Methods     []MethodDesc
+	Streams     []StreamDesc
+}
+
+// service consists of the information of the server serving this service and
+// the methods in this service.
+type service struct {
+	server interface{} // the server for service methods
+	md     map[string]*MethodDesc
+	sd     map[string]*StreamDesc
+}
+
+// Server is a gRPC server to serve RPC requests.
+type Server struct {
+	opts options
+
+	mu     sync.Mutex // guards following
+	lis    map[net.Listener]bool
+	conns  map[io.Closer]bool
+	m      map[string]*service // service name -> service info
+	events trace.EventLog
+}
+
+type options struct {
+	creds                credentials.Credentials
+	codec                Codec
+	cp                   Compressor
+	dc                   Decompressor
+	unaryInt             UnaryServerInterceptor
+	streamInt            StreamServerInterceptor
+	maxConcurrentStreams uint32
+	useHandlerImpl       bool // use http.Handler-based server
+}
+
+// A ServerOption sets options.
+type ServerOption func(*options)
+
+// CustomCodec returns a ServerOption that sets a codec for message marshaling and unmarshaling.
+func CustomCodec(codec Codec) ServerOption {
+	return func(o *options) {
+		o.codec = codec
+	}
+}
+
+// RPCCompressor returns a ServerOption that sets a compressor for outbound message.
+func RPCCompressor(cp Compressor) ServerOption {
+	return func(o *options) {
+		o.cp = cp
+	}
+}
+
+// RPCDecompressor returns a ServerOption that sets a decompressor for inbound message.
+func RPCDecompressor(dc Decompressor) ServerOption {
+	return func(o *options) {
+		o.dc = dc
+	}
+}
+
+// MaxConcurrentStreams returns a ServerOption that will apply a limit on the number
+// of concurrent streams to each ServerTransport.
+func MaxConcurrentStreams(n uint32) ServerOption {
+	return func(o *options) {
+		o.maxConcurrentStreams = n
+	}
+}
+
+// Creds returns a ServerOption that sets credentials for server connections.
+func Creds(c credentials.Credentials) ServerOption {
+	return func(o *options) {
+		o.creds = c
+	}
+}
+
+// UnaryInterceptor returns a ServerOption that sets the UnaryServerInterceptor for the
+// server. Only one unary interceptor can be installed. The construction of multiple
+// interceptors (e.g., chaining) can be implemented at the caller.
+func UnaryInterceptor(i UnaryServerInterceptor) ServerOption {
+	return func(o *options) {
+		if o.unaryInt != nil {
+			panic("The unary server interceptor has been set.")
+		}
+		o.unaryInt = i
+	}
+}
+
+// StreamInterceptor returns a ServerOption that sets the StreamServerInterceptor for the
+// server. Only one stream interceptor can be installed.
+func StreamInterceptor(i StreamServerInterceptor) ServerOption {
+	return func(o *options) {
+		if o.streamInt != nil {
+			panic("The stream server interceptor has been set.")
+		}
+		o.streamInt = i
+	}
+}
+
+// NewServer creates a gRPC server which has no service registered and has not
+// started to accept requests yet.
+func NewServer(opt ...ServerOption) *Server {
+	var opts options
+	for _, o := range opt {
+		o(&opts)
+	}
+	if opts.codec == nil {
+		// Set the default codec.
+		opts.codec = protoCodec{}
+	}
+	s := &Server{
+		lis:   make(map[net.Listener]bool),
+		opts:  opts,
+		conns: make(map[io.Closer]bool),
+		m:     make(map[string]*service),
+	}
+	if EnableTracing {
+		_, file, line, _ := runtime.Caller(1)
+		s.events = trace.NewEventLog("grpc.Server", fmt.Sprintf("%s:%d", file, line))
+	}
+	return s
+}
+
+// printf records an event in s's event log, unless s has been stopped.
+// REQUIRES s.mu is held.
+func (s *Server) printf(format string, a ...interface{}) {
+	if s.events != nil {
+		s.events.Printf(format, a...)
+	}
+}
+
+// errorf records an error in s's event log, unless s has been stopped.
+// REQUIRES s.mu is held.
+func (s *Server) errorf(format string, a ...interface{}) {
+	if s.events != nil {
+		s.events.Errorf(format, a...)
+	}
+}
+
+// RegisterService register a service and its implementation to the gRPC
+// server. Called from the IDL generated code. This must be called before
+// invoking Serve.
+func (s *Server) RegisterService(sd *ServiceDesc, ss interface{}) {
+	ht := reflect.TypeOf(sd.HandlerType).Elem()
+	st := reflect.TypeOf(ss)
+	if !st.Implements(ht) {
+		grpclog.Fatalf("grpc: Server.RegisterService found the handler of type %v that does not satisfy %v", st, ht)
+	}
+	s.register(sd, ss)
+}
+
+func (s *Server) register(sd *ServiceDesc, ss interface{}) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.printf("RegisterService(%q)", sd.ServiceName)
+	if _, ok := s.m[sd.ServiceName]; ok {
+		grpclog.Fatalf("grpc: Server.RegisterService found duplicate service registration for %q", sd.ServiceName)
+	}
+	srv := &service{
+		server: ss,
+		md:     make(map[string]*MethodDesc),
+		sd:     make(map[string]*StreamDesc),
+	}
+	for i := range sd.Methods {
+		d := &sd.Methods[i]
+		srv.md[d.MethodName] = d
+	}
+	for i := range sd.Streams {
+		d := &sd.Streams[i]
+		srv.sd[d.StreamName] = d
+	}
+	s.m[sd.ServiceName] = srv
+}
+
+var (
+	// ErrServerStopped indicates that the operation is now illegal because of
+	// the server being stopped.
+	ErrServerStopped = errors.New("grpc: the server has been stopped")
+)
+
+func (s *Server) useTransportAuthenticator(rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
+	creds, ok := s.opts.creds.(credentials.TransportAuthenticator)
+	if !ok {
+		return rawConn, nil, nil
+	}
+	return creds.ServerHandshake(rawConn)
+}
+
+// Serve accepts incoming connections on the listener lis, creating a new
+// ServerTransport and service goroutine for each. The service goroutines
+// read gRPC requests and then call the registered handlers to reply to them.
+// Service returns when lis.Accept fails. lis will be closed when
+// this method returns.
+func (s *Server) Serve(lis net.Listener) error {
+	s.mu.Lock()
+	s.printf("serving")
+	if s.lis == nil {
+		s.mu.Unlock()
+		lis.Close()
+		return ErrServerStopped
+	}
+	s.lis[lis] = true
+	s.mu.Unlock()
+	defer func() {
+		lis.Close()
+		s.mu.Lock()
+		delete(s.lis, lis)
+		s.mu.Unlock()
+	}()
+	for {
+		rawConn, err := lis.Accept()
+		if err != nil {
+			s.mu.Lock()
+			s.printf("done serving; Accept = %v", err)
+			s.mu.Unlock()
+			return err
+		}
+		// Start a new goroutine to deal with rawConn
+		// so we don't stall this Accept loop goroutine.
+		go s.handleRawConn(rawConn)
+	}
+}
+
+// handleRawConn is run in its own goroutine and handles a just-accepted
+// connection that has not had any I/O performed on it yet.
+func (s *Server) handleRawConn(rawConn net.Conn) {
+	conn, authInfo, err := s.useTransportAuthenticator(rawConn)
+	if err != nil {
+		s.mu.Lock()
+		s.errorf("ServerHandshake(%q) failed: %v", rawConn.RemoteAddr(), err)
+		s.mu.Unlock()
+		grpclog.Printf("grpc: Server.Serve failed to complete security handshake from %q: %v", rawConn.RemoteAddr(), err)
+		rawConn.Close()
+		return
+	}
+
+	s.mu.Lock()
+	if s.conns == nil {
+		s.mu.Unlock()
+		conn.Close()
+		return
+	}
+	s.mu.Unlock()
+
+	if s.opts.useHandlerImpl {
+		s.serveUsingHandler(conn)
+	} else {
+		s.serveNewHTTP2Transport(conn, authInfo)
+	}
+}
+
+// serveNewHTTP2Transport sets up a new http/2 transport (using the
+// gRPC http2 server transport in transport/http2_server.go) and
+// serves streams on it.
+// This is run in its own goroutine (it does network I/O in
+// transport.NewServerTransport).
+func (s *Server) serveNewHTTP2Transport(c net.Conn, authInfo credentials.AuthInfo) {
+	st, err := transport.NewServerTransport("http2", c, s.opts.maxConcurrentStreams, authInfo)
+	if err != nil {
+		s.mu.Lock()
+		s.errorf("NewServerTransport(%q) failed: %v", c.RemoteAddr(), err)
+		s.mu.Unlock()
+		c.Close()
+		grpclog.Println("grpc: Server.Serve failed to create ServerTransport: ", err)
+		return
+	}
+	if !s.addConn(st) {
+		st.Close()
+		return
+	}
+	s.serveStreams(st)
+}
+
+func (s *Server) serveStreams(st transport.ServerTransport) {
+	defer s.removeConn(st)
+	defer st.Close()
+	var wg sync.WaitGroup
+	st.HandleStreams(func(stream *transport.Stream) {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			s.handleStream(st, stream, s.traceInfo(st, stream))
+		}()
+	})
+	wg.Wait()
+}
+
+var _ http.Handler = (*Server)(nil)
+
+// serveUsingHandler is called from handleRawConn when s is configured
+// to handle requests via the http.Handler interface. It sets up a
+// net/http.Server to handle the just-accepted conn. The http.Server
+// is configured to route all incoming requests (all HTTP/2 streams)
+// to ServeHTTP, which creates a new ServerTransport for each stream.
+// serveUsingHandler blocks until conn closes.
+//
+// This codepath is only used when Server.TestingUseHandlerImpl has
+// been configured. This lets the end2end tests exercise the ServeHTTP
+// method as one of the environment types.
+//
+// conn is the *tls.Conn that's already been authenticated.
+func (s *Server) serveUsingHandler(conn net.Conn) {
+	if !s.addConn(conn) {
+		conn.Close()
+		return
+	}
+	defer s.removeConn(conn)
+	h2s := &http2.Server{
+		MaxConcurrentStreams: s.opts.maxConcurrentStreams,
+	}
+	h2s.ServeConn(conn, &http2.ServeConnOpts{
+		Handler: s,
+	})
+}
+
+func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	st, err := transport.NewServerHandlerTransport(w, r)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	if !s.addConn(st) {
+		st.Close()
+		return
+	}
+	defer s.removeConn(st)
+	s.serveStreams(st)
+}
+
+// traceInfo returns a traceInfo and associates it with stream, if tracing is enabled.
+// If tracing is not enabled, it returns nil.
+func (s *Server) traceInfo(st transport.ServerTransport, stream *transport.Stream) (trInfo *traceInfo) {
+	if !EnableTracing {
+		return nil
+	}
+	trInfo = &traceInfo{
+		tr: trace.New("grpc.Recv."+methodFamily(stream.Method()), stream.Method()),
+	}
+	trInfo.firstLine.client = false
+	trInfo.firstLine.remoteAddr = st.RemoteAddr()
+	stream.TraceContext(trInfo.tr)
+	if dl, ok := stream.Context().Deadline(); ok {
+		trInfo.firstLine.deadline = dl.Sub(time.Now())
+	}
+	return trInfo
+}
+
+func (s *Server) addConn(c io.Closer) bool {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.conns == nil {
+		return false
+	}
+	s.conns[c] = true
+	return true
+}
+
+func (s *Server) removeConn(c io.Closer) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.conns != nil {
+		delete(s.conns, c)
+	}
+}
+
+func (s *Server) sendResponse(t transport.ServerTransport, stream *transport.Stream, msg interface{}, cp Compressor, opts *transport.Options) error {
+	var cbuf *bytes.Buffer
+	if cp != nil {
+		cbuf = new(bytes.Buffer)
+	}
+	p, err := encode(s.opts.codec, msg, cp, cbuf)
+	if err != nil {
+		// This typically indicates a fatal issue (e.g., memory
+		// corruption or hardware faults) the application program
+		// cannot handle.
+		//
+		// TODO(zhaoq): There exist other options also such as only closing the
+		// faulty stream locally and remotely (Other streams can keep going). Find
+		// the optimal option.
+		grpclog.Fatalf("grpc: Server failed to encode response %v", err)
+	}
+	return t.Write(stream, p, opts)
+}
+
+func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.Stream, srv *service, md *MethodDesc, trInfo *traceInfo) (err error) {
+	if trInfo != nil {
+		defer trInfo.tr.Finish()
+		trInfo.firstLine.client = false
+		trInfo.tr.LazyLog(&trInfo.firstLine, false)
+		defer func() {
+			if err != nil && err != io.EOF {
+				trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+				trInfo.tr.SetError()
+			}
+		}()
+	}
+	if s.opts.cp != nil {
+		// NOTE: this needs to be ahead of all handling, https://github.com/grpc/grpc-go/issues/686.
+		stream.SetSendCompress(s.opts.cp.Type())
+	}
+	p := &parser{r: stream}
+	for {
+		pf, req, err := p.recvMsg()
+		if err == io.EOF {
+			// The entire stream is done (for unary RPC only).
+			return err
+		}
+		if err == io.ErrUnexpectedEOF {
+			err = transport.StreamError{Code: codes.Internal, Desc: "io.ErrUnexpectedEOF"}
+		}
+		if err != nil {
+			switch err := err.(type) {
+			case transport.ConnectionError:
+				// Nothing to do here.
+			case transport.StreamError:
+				if err := t.WriteStatus(stream, err.Code, err.Desc); err != nil {
+					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
+				}
+			default:
+				panic(fmt.Sprintf("grpc: Unexpected error (%T) from recvMsg: %v", err, err))
+			}
+			return err
+		}
+
+		if err := checkRecvPayload(pf, stream.RecvCompress(), s.opts.dc); err != nil {
+			switch err := err.(type) {
+			case transport.StreamError:
+				if err := t.WriteStatus(stream, err.Code, err.Desc); err != nil {
+					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
+				}
+			default:
+				if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
+					grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
+				}
+
+			}
+			return err
+		}
+		statusCode := codes.OK
+		statusDesc := ""
+		df := func(v interface{}) error {
+			if pf == compressionMade {
+				var err error
+				req, err = s.opts.dc.Do(bytes.NewReader(req))
+				if err != nil {
+					if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
+						grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)
+					}
+					return err
+				}
+			}
+			if err := s.opts.codec.Unmarshal(req, v); err != nil {
+				return err
+			}
+			if trInfo != nil {
+				trInfo.tr.LazyLog(&payload{sent: false, msg: v}, true)
+			}
+			return nil
+		}
+		reply, appErr := md.Handler(srv.server, stream.Context(), df, s.opts.unaryInt)
+		if appErr != nil {
+			if err, ok := appErr.(rpcError); ok {
+				statusCode = err.code
+				statusDesc = err.desc
+			} else {
+				statusCode = convertCode(appErr)
+				statusDesc = appErr.Error()
+			}
+			if trInfo != nil && statusCode != codes.OK {
+				trInfo.tr.LazyLog(stringer(statusDesc), true)
+				trInfo.tr.SetError()
+			}
+			if err := t.WriteStatus(stream, statusCode, statusDesc); err != nil {
+				grpclog.Printf("grpc: Server.processUnaryRPC failed to write status: %v", err)
+				return err
+			}
+			return nil
+		}
+		if trInfo != nil {
+			trInfo.tr.LazyLog(stringer("OK"), false)
+		}
+		opts := &transport.Options{
+			Last:  true,
+			Delay: false,
+		}
+		if err := s.sendResponse(t, stream, reply, s.opts.cp, opts); err != nil {
+			switch err := err.(type) {
+			case transport.ConnectionError:
+				// Nothing to do here.
+			case transport.StreamError:
+				statusCode = err.Code
+				statusDesc = err.Desc
+			default:
+				statusCode = codes.Unknown
+				statusDesc = err.Error()
+			}
+			return err
+		}
+		if trInfo != nil {
+			trInfo.tr.LazyLog(&payload{sent: true, msg: reply}, true)
+		}
+		return t.WriteStatus(stream, statusCode, statusDesc)
+	}
+}
+
+func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transport.Stream, srv *service, sd *StreamDesc, trInfo *traceInfo) (err error) {
+	if s.opts.cp != nil {
+		stream.SetSendCompress(s.opts.cp.Type())
+	}
+	ss := &serverStream{
+		t:      t,
+		s:      stream,
+		p:      &parser{r: stream},
+		codec:  s.opts.codec,
+		cp:     s.opts.cp,
+		dc:     s.opts.dc,
+		trInfo: trInfo,
+	}
+	if ss.cp != nil {
+		ss.cbuf = new(bytes.Buffer)
+	}
+	if trInfo != nil {
+		trInfo.tr.LazyLog(&trInfo.firstLine, false)
+		defer func() {
+			ss.mu.Lock()
+			if err != nil && err != io.EOF {
+				ss.trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+				ss.trInfo.tr.SetError()
+			}
+			ss.trInfo.tr.Finish()
+			ss.trInfo.tr = nil
+			ss.mu.Unlock()
+		}()
+	}
+	var appErr error
+	if s.opts.streamInt == nil {
+		appErr = sd.Handler(srv.server, ss)
+	} else {
+		info := &StreamServerInfo{
+			FullMethod:     stream.Method(),
+			IsClientStream: sd.ClientStreams,
+			IsServerStream: sd.ServerStreams,
+		}
+		appErr = s.opts.streamInt(srv.server, ss, info, sd.Handler)
+	}
+	if appErr != nil {
+		if err, ok := appErr.(rpcError); ok {
+			ss.statusCode = err.code
+			ss.statusDesc = err.desc
+		} else if err, ok := appErr.(transport.StreamError); ok {
+			ss.statusCode = err.Code
+			ss.statusDesc = err.Desc
+		} else {
+			ss.statusCode = convertCode(appErr)
+			ss.statusDesc = appErr.Error()
+		}
+	}
+	if trInfo != nil {
+		ss.mu.Lock()
+		if ss.statusCode != codes.OK {
+			ss.trInfo.tr.LazyLog(stringer(ss.statusDesc), true)
+			ss.trInfo.tr.SetError()
+		} else {
+			ss.trInfo.tr.LazyLog(stringer("OK"), false)
+		}
+		ss.mu.Unlock()
+	}
+	return t.WriteStatus(ss.s, ss.statusCode, ss.statusDesc)
+
+}
+
+func (s *Server) handleStream(t transport.ServerTransport, stream *transport.Stream, trInfo *traceInfo) {
+	sm := stream.Method()
+	if sm != "" && sm[0] == '/' {
+		sm = sm[1:]
+	}
+	pos := strings.LastIndex(sm, "/")
+	if pos == -1 {
+		if trInfo != nil {
+			trInfo.tr.LazyLog(&fmtStringer{"Malformed method name %q", []interface{}{sm}}, true)
+			trInfo.tr.SetError()
+		}
+		if err := t.WriteStatus(stream, codes.InvalidArgument, fmt.Sprintf("malformed method name: %q", stream.Method())); err != nil {
+			if trInfo != nil {
+				trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+				trInfo.tr.SetError()
+			}
+			grpclog.Printf("grpc: Server.handleStream failed to write status: %v", err)
+		}
+		if trInfo != nil {
+			trInfo.tr.Finish()
+		}
+		return
+	}
+	service := sm[:pos]
+	method := sm[pos+1:]
+	srv, ok := s.m[service]
+	if !ok {
+		if trInfo != nil {
+			trInfo.tr.LazyLog(&fmtStringer{"Unknown service %v", []interface{}{service}}, true)
+			trInfo.tr.SetError()
+		}
+		if err := t.WriteStatus(stream, codes.Unimplemented, fmt.Sprintf("unknown service %v", service)); err != nil {
+			if trInfo != nil {
+				trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+				trInfo.tr.SetError()
+			}
+			grpclog.Printf("grpc: Server.handleStream failed to write status: %v", err)
+		}
+		if trInfo != nil {
+			trInfo.tr.Finish()
+		}
+		return
+	}
+	// Unary RPC or Streaming RPC?
+	if md, ok := srv.md[method]; ok {
+		s.processUnaryRPC(t, stream, srv, md, trInfo)
+		return
+	}
+	if sd, ok := srv.sd[method]; ok {
+		s.processStreamingRPC(t, stream, srv, sd, trInfo)
+		return
+	}
+	if trInfo != nil {
+		trInfo.tr.LazyLog(&fmtStringer{"Unknown method %v", []interface{}{method}}, true)
+		trInfo.tr.SetError()
+	}
+	if err := t.WriteStatus(stream, codes.Unimplemented, fmt.Sprintf("unknown method %v", method)); err != nil {
+		if trInfo != nil {
+			trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+			trInfo.tr.SetError()
+		}
+		grpclog.Printf("grpc: Server.handleStream failed to write status: %v", err)
+	}
+	if trInfo != nil {
+		trInfo.tr.Finish()
+	}
+}
+
+// Stop stops the gRPC server. It immediately closes all open
+// connections and listeners.
+// It cancels all active RPCs on the server side and the corresponding
+// pending RPCs on the client side will get notified by connection
+// errors.
+func (s *Server) Stop() {
+	s.mu.Lock()
+	listeners := s.lis
+	s.lis = nil
+	cs := s.conns
+	s.conns = nil
+	s.mu.Unlock()
+
+	for lis := range listeners {
+		lis.Close()
+	}
+	for c := range cs {
+		c.Close()
+	}
+
+	s.mu.Lock()
+	if s.events != nil {
+		s.events.Finish()
+		s.events = nil
+	}
+	s.mu.Unlock()
+}
+
+func init() {
+	internal.TestingCloseConns = func(arg interface{}) {
+		arg.(*Server).testingCloseConns()
+	}
+	internal.TestingUseHandlerImpl = func(arg interface{}) {
+		arg.(*Server).opts.useHandlerImpl = true
+	}
+}
+
+// testingCloseConns closes all existing transports but keeps s.lis
+// accepting new connections.
+func (s *Server) testingCloseConns() {
+	s.mu.Lock()
+	for c := range s.conns {
+		c.Close()
+		delete(s.conns, c)
+	}
+	s.mu.Unlock()
+}
+
+// SendHeader sends header metadata. It may be called at most once from a unary
+// RPC handler. The ctx is the RPC handler's Context or one derived from it.
+func SendHeader(ctx context.Context, md metadata.MD) error {
+	if md.Len() == 0 {
+		return nil
+	}
+	stream, ok := transport.StreamFromContext(ctx)
+	if !ok {
+		return fmt.Errorf("grpc: failed to fetch the stream from the context %v", ctx)
+	}
+	t := stream.ServerTransport()
+	if t == nil {
+		grpclog.Fatalf("grpc: SendHeader: %v has no ServerTransport to send header metadata.", stream)
+	}
+	return t.WriteHeader(stream, md)
+}
+
+// SetTrailer sets the trailer metadata that will be sent when an RPC returns.
+// It may be called at most once from a unary RPC handler. The ctx is the RPC
+// handler's Context or one derived from it.
+func SetTrailer(ctx context.Context, md metadata.MD) error {
+	if md.Len() == 0 {
+		return nil
+	}
+	stream, ok := transport.StreamFromContext(ctx)
+	if !ok {
+		return fmt.Errorf("grpc: failed to fetch the stream from the context %v", ctx)
+	}
+	return stream.SetTrailer(md)
+}
diff --git a/vendor/google.golang.org/grpc/stream.go b/vendor/google.golang.org/grpc/stream.go
new file mode 100644
index 0000000..de125d5
--- /dev/null
+++ b/vendor/google.golang.org/grpc/stream.go
@@ -0,0 +1,424 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"sync"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/trace"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/transport"
+)
+
+// StreamHandler defines the handler called by gRPC server to complete the
+// execution of a streaming RPC.
+type StreamHandler func(srv interface{}, stream ServerStream) error
+
+// StreamDesc represents a streaming RPC service's method specification.
+type StreamDesc struct {
+	StreamName string
+	Handler    StreamHandler
+
+	// At least one of these is true.
+	ServerStreams bool
+	ClientStreams bool
+}
+
+// Stream defines the common interface a client or server stream has to satisfy.
+type Stream interface {
+	// Context returns the context for this stream.
+	Context() context.Context
+	// SendMsg blocks until it sends m, the stream is done or the stream
+	// breaks.
+	// On error, it aborts the stream and returns an RPC status on client
+	// side. On server side, it simply returns the error to the caller.
+	// SendMsg is called by generated code. Also Users can call SendMsg
+	// directly when it is really needed in their use cases.
+	SendMsg(m interface{}) error
+	// RecvMsg blocks until it receives a message or the stream is
+	// done. On client side, it returns io.EOF when the stream is done. On
+	// any other error, it aborts the stream and returns an RPC status. On
+	// server side, it simply returns the error to the caller.
+	RecvMsg(m interface{}) error
+}
+
+// ClientStream defines the interface a client stream has to satify.
+type ClientStream interface {
+	// Header returns the header metadata received from the server if there
+	// is any. It blocks if the metadata is not ready to read.
+	Header() (metadata.MD, error)
+	// Trailer returns the trailer metadata from the server. It must be called
+	// after stream.Recv() returns non-nil error (including io.EOF) for
+	// bi-directional streaming and server streaming or stream.CloseAndRecv()
+	// returns for client streaming in order to receive trailer metadata if
+	// present. Otherwise, it could returns an empty MD even though trailer
+	// is present.
+	Trailer() metadata.MD
+	// CloseSend closes the send direction of the stream. It closes the stream
+	// when non-nil error is met.
+	CloseSend() error
+	Stream
+}
+
+// NewClientStream creates a new Stream for the client side. This is called
+// by generated code.
+func NewClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error) {
+	var (
+		t   transport.ClientTransport
+		err error
+		put func()
+	)
+	// TODO(zhaoq): CallOption is omitted. Add support when it is needed.
+	gopts := BalancerGetOptions{
+		BlockingWait: false,
+	}
+	t, put, err = cc.getTransport(ctx, gopts)
+	if err != nil {
+		return nil, toRPCErr(err)
+	}
+	callHdr := &transport.CallHdr{
+		Host:   cc.authority,
+		Method: method,
+		Flush:  desc.ServerStreams && desc.ClientStreams,
+	}
+	if cc.dopts.cp != nil {
+		callHdr.SendCompress = cc.dopts.cp.Type()
+	}
+	cs := &clientStream{
+		desc:    desc,
+		put:     put,
+		codec:   cc.dopts.codec,
+		cp:      cc.dopts.cp,
+		dc:      cc.dopts.dc,
+		tracing: EnableTracing,
+	}
+	if cc.dopts.cp != nil {
+		callHdr.SendCompress = cc.dopts.cp.Type()
+		cs.cbuf = new(bytes.Buffer)
+	}
+	if cs.tracing {
+		cs.trInfo.tr = trace.New("grpc.Sent."+methodFamily(method), method)
+		cs.trInfo.firstLine.client = true
+		if deadline, ok := ctx.Deadline(); ok {
+			cs.trInfo.firstLine.deadline = deadline.Sub(time.Now())
+		}
+		cs.trInfo.tr.LazyLog(&cs.trInfo.firstLine, false)
+		ctx = trace.NewContext(ctx, cs.trInfo.tr)
+	}
+	s, err := t.NewStream(ctx, callHdr)
+	if err != nil {
+		cs.finish(err)
+		return nil, toRPCErr(err)
+	}
+	cs.t = t
+	cs.s = s
+	cs.p = &parser{r: s}
+	// Listen on ctx.Done() to detect cancellation when there is no pending
+	// I/O operations on this stream.
+	go func() {
+		select {
+		case <-t.Error():
+			// Incur transport error, simply exit.
+		case <-s.Context().Done():
+			err := s.Context().Err()
+			cs.finish(err)
+			cs.closeTransportStream(transport.ContextErr(err))
+		}
+	}()
+	return cs, nil
+}
+
+// clientStream implements a client side Stream.
+type clientStream struct {
+	t     transport.ClientTransport
+	s     *transport.Stream
+	p     *parser
+	desc  *StreamDesc
+	codec Codec
+	cp    Compressor
+	cbuf  *bytes.Buffer
+	dc    Decompressor
+
+	tracing bool // set to EnableTracing when the clientStream is created.
+
+	mu     sync.Mutex
+	put    func()
+	closed bool
+	// trInfo.tr is set when the clientStream is created (if EnableTracing is true),
+	// and is set to nil when the clientStream's finish method is called.
+	trInfo traceInfo
+}
+
+func (cs *clientStream) Context() context.Context {
+	return cs.s.Context()
+}
+
+func (cs *clientStream) Header() (metadata.MD, error) {
+	m, err := cs.s.Header()
+	if err != nil {
+		if _, ok := err.(transport.ConnectionError); !ok {
+			cs.closeTransportStream(err)
+		}
+	}
+	return m, err
+}
+
+func (cs *clientStream) Trailer() metadata.MD {
+	return cs.s.Trailer()
+}
+
+func (cs *clientStream) SendMsg(m interface{}) (err error) {
+	if cs.tracing {
+		cs.mu.Lock()
+		if cs.trInfo.tr != nil {
+			cs.trInfo.tr.LazyLog(&payload{sent: true, msg: m}, true)
+		}
+		cs.mu.Unlock()
+	}
+	defer func() {
+		if err != nil {
+			cs.finish(err)
+		}
+		if err == nil || err == io.EOF {
+			return
+		}
+		if _, ok := err.(transport.ConnectionError); !ok {
+			cs.closeTransportStream(err)
+		}
+		err = toRPCErr(err)
+	}()
+	out, err := encode(cs.codec, m, cs.cp, cs.cbuf)
+	defer func() {
+		if cs.cbuf != nil {
+			cs.cbuf.Reset()
+		}
+	}()
+	if err != nil {
+		return transport.StreamErrorf(codes.Internal, "grpc: %v", err)
+	}
+	return cs.t.Write(cs.s, out, &transport.Options{Last: false})
+}
+
+func (cs *clientStream) RecvMsg(m interface{}) (err error) {
+	err = recv(cs.p, cs.codec, cs.s, cs.dc, m)
+	defer func() {
+		// err != nil indicates the termination of the stream.
+		if err != nil {
+			cs.finish(err)
+		}
+	}()
+	if err == nil {
+		if cs.tracing {
+			cs.mu.Lock()
+			if cs.trInfo.tr != nil {
+				cs.trInfo.tr.LazyLog(&payload{sent: false, msg: m}, true)
+			}
+			cs.mu.Unlock()
+		}
+		if !cs.desc.ClientStreams || cs.desc.ServerStreams {
+			return
+		}
+		// Special handling for client streaming rpc.
+		err = recv(cs.p, cs.codec, cs.s, cs.dc, m)
+		cs.closeTransportStream(err)
+		if err == nil {
+			return toRPCErr(errors.New("grpc: client streaming protocol violation: get <nil>, want <EOF>"))
+		}
+		if err == io.EOF {
+			if cs.s.StatusCode() == codes.OK {
+				cs.finish(err)
+				return nil
+			}
+			return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
+		}
+		return toRPCErr(err)
+	}
+	if _, ok := err.(transport.ConnectionError); !ok {
+		cs.closeTransportStream(err)
+	}
+	if err == io.EOF {
+		if cs.s.StatusCode() == codes.OK {
+			// Returns io.EOF to indicate the end of the stream.
+			return
+		}
+		return Errorf(cs.s.StatusCode(), "%s", cs.s.StatusDesc())
+	}
+	return toRPCErr(err)
+}
+
+func (cs *clientStream) CloseSend() (err error) {
+	err = cs.t.Write(cs.s, nil, &transport.Options{Last: true})
+	defer func() {
+		if err != nil {
+			cs.finish(err)
+		}
+	}()
+	if err == nil || err == io.EOF {
+		return
+	}
+	if _, ok := err.(transport.ConnectionError); !ok {
+		cs.closeTransportStream(err)
+	}
+	err = toRPCErr(err)
+	return
+}
+
+func (cs *clientStream) closeTransportStream(err error) {
+	cs.mu.Lock()
+	if cs.closed {
+		cs.mu.Unlock()
+		return
+	}
+	cs.closed = true
+	cs.mu.Unlock()
+	cs.t.CloseStream(cs.s, err)
+}
+
+func (cs *clientStream) finish(err error) {
+	if !cs.tracing {
+		return
+	}
+	cs.mu.Lock()
+	defer cs.mu.Unlock()
+	if cs.put != nil {
+		cs.put()
+		cs.put = nil
+	}
+	if cs.trInfo.tr != nil {
+		if err == nil || err == io.EOF {
+			cs.trInfo.tr.LazyPrintf("RPC: [OK]")
+		} else {
+			cs.trInfo.tr.LazyPrintf("RPC: [%v]", err)
+			cs.trInfo.tr.SetError()
+		}
+		cs.trInfo.tr.Finish()
+		cs.trInfo.tr = nil
+	}
+}
+
+// ServerStream defines the interface a server stream has to satisfy.
+type ServerStream interface {
+	// SendHeader sends the header metadata. It should not be called
+	// after SendProto. It fails if called multiple times or if
+	// called after SendProto.
+	SendHeader(metadata.MD) error
+	// SetTrailer sets the trailer metadata which will be sent with the
+	// RPC status.
+	SetTrailer(metadata.MD)
+	Stream
+}
+
+// serverStream implements a server side Stream.
+type serverStream struct {
+	t          transport.ServerTransport
+	s          *transport.Stream
+	p          *parser
+	codec      Codec
+	cp         Compressor
+	dc         Decompressor
+	cbuf       *bytes.Buffer
+	statusCode codes.Code
+	statusDesc string
+	trInfo     *traceInfo
+
+	mu sync.Mutex // protects trInfo.tr after the service handler runs.
+}
+
+func (ss *serverStream) Context() context.Context {
+	return ss.s.Context()
+}
+
+func (ss *serverStream) SendHeader(md metadata.MD) error {
+	return ss.t.WriteHeader(ss.s, md)
+}
+
+func (ss *serverStream) SetTrailer(md metadata.MD) {
+	if md.Len() == 0 {
+		return
+	}
+	ss.s.SetTrailer(md)
+	return
+}
+
+func (ss *serverStream) SendMsg(m interface{}) (err error) {
+	defer func() {
+		if ss.trInfo != nil {
+			ss.mu.Lock()
+			if ss.trInfo.tr != nil {
+				if err == nil {
+					ss.trInfo.tr.LazyLog(&payload{sent: true, msg: m}, true)
+				} else {
+					ss.trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+					ss.trInfo.tr.SetError()
+				}
+			}
+			ss.mu.Unlock()
+		}
+	}()
+	out, err := encode(ss.codec, m, ss.cp, ss.cbuf)
+	defer func() {
+		if ss.cbuf != nil {
+			ss.cbuf.Reset()
+		}
+	}()
+	if err != nil {
+		err = transport.StreamErrorf(codes.Internal, "grpc: %v", err)
+		return err
+	}
+	return ss.t.Write(ss.s, out, &transport.Options{Last: false})
+}
+
+func (ss *serverStream) RecvMsg(m interface{}) (err error) {
+	defer func() {
+		if ss.trInfo != nil {
+			ss.mu.Lock()
+			if ss.trInfo.tr != nil {
+				if err == nil {
+					ss.trInfo.tr.LazyLog(&payload{sent: false, msg: m}, true)
+				} else if err != io.EOF {
+					ss.trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
+					ss.trInfo.tr.SetError()
+				}
+			}
+			ss.mu.Unlock()
+		}
+	}()
+	return recv(ss.p, ss.codec, ss.s, ss.dc, m)
+}
diff --git a/vendor/google.golang.org/grpc/trace.go b/vendor/google.golang.org/grpc/trace.go
new file mode 100644
index 0000000..f6747e1
--- /dev/null
+++ b/vendor/google.golang.org/grpc/trace.go
@@ -0,0 +1,119 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package grpc
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net"
+	"strings"
+	"time"
+
+	"golang.org/x/net/trace"
+)
+
+// EnableTracing controls whether to trace RPCs using the golang.org/x/net/trace package.
+// This should only be set before any RPCs are sent or received by this program.
+var EnableTracing = true
+
+// methodFamily returns the trace family for the given method.
+// It turns "/pkg.Service/GetFoo" into "pkg.Service".
+func methodFamily(m string) string {
+	m = strings.TrimPrefix(m, "/") // remove leading slash
+	if i := strings.Index(m, "/"); i >= 0 {
+		m = m[:i] // remove everything from second slash
+	}
+	if i := strings.LastIndex(m, "."); i >= 0 {
+		m = m[i+1:] // cut down to last dotted component
+	}
+	return m
+}
+
+// traceInfo contains tracing information for an RPC.
+type traceInfo struct {
+	tr        trace.Trace
+	firstLine firstLine
+}
+
+// firstLine is the first line of an RPC trace.
+type firstLine struct {
+	client     bool // whether this is a client (outgoing) RPC
+	remoteAddr net.Addr
+	deadline   time.Duration // may be zero
+}
+
+func (f *firstLine) String() string {
+	var line bytes.Buffer
+	io.WriteString(&line, "RPC: ")
+	if f.client {
+		io.WriteString(&line, "to")
+	} else {
+		io.WriteString(&line, "from")
+	}
+	fmt.Fprintf(&line, " %v deadline:", f.remoteAddr)
+	if f.deadline != 0 {
+		fmt.Fprint(&line, f.deadline)
+	} else {
+		io.WriteString(&line, "none")
+	}
+	return line.String()
+}
+
+// payload represents an RPC request or response payload.
+type payload struct {
+	sent bool        // whether this is an outgoing payload
+	msg  interface{} // e.g. a proto.Message
+	// TODO(dsymonds): add stringifying info to codec, and limit how much we hold here?
+}
+
+func (p payload) String() string {
+	if p.sent {
+		return fmt.Sprintf("sent: %v", p.msg)
+	}
+	return fmt.Sprintf("recv: %v", p.msg)
+}
+
+type fmtStringer struct {
+	format string
+	a      []interface{}
+}
+
+func (f *fmtStringer) String() string {
+	return fmt.Sprintf(f.format, f.a...)
+}
+
+type stringer string
+
+func (s stringer) String() string { return string(s) }
diff --git a/vendor/google.golang.org/grpc/transport/control.go b/vendor/google.golang.org/grpc/transport/control.go
new file mode 100644
index 0000000..7e9bdf3
--- /dev/null
+++ b/vendor/google.golang.org/grpc/transport/control.go
@@ -0,0 +1,210 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package transport
+
+import (
+	"fmt"
+	"sync"
+
+	"golang.org/x/net/http2"
+)
+
+const (
+	// The default value of flow control window size in HTTP2 spec.
+	defaultWindowSize = 65535
+	// The initial window size for flow control.
+	initialWindowSize     = defaultWindowSize      // for an RPC
+	initialConnWindowSize = defaultWindowSize * 16 // for a connection
+)
+
+// The following defines various control items which could flow through
+// the control buffer of transport. They represent different aspects of
+// control tasks, e.g., flow control, settings, streaming resetting, etc.
+type windowUpdate struct {
+	streamID  uint32
+	increment uint32
+}
+
+func (*windowUpdate) item() {}
+
+type settings struct {
+	ack bool
+	ss  []http2.Setting
+}
+
+func (*settings) item() {}
+
+type resetStream struct {
+	streamID uint32
+	code     http2.ErrCode
+}
+
+func (*resetStream) item() {}
+
+type flushIO struct {
+}
+
+func (*flushIO) item() {}
+
+type ping struct {
+	ack  bool
+	data [8]byte
+}
+
+func (*ping) item() {}
+
+// quotaPool is a pool which accumulates the quota and sends it to acquire()
+// when it is available.
+type quotaPool struct {
+	c chan int
+
+	mu    sync.Mutex
+	quota int
+}
+
+// newQuotaPool creates a quotaPool which has quota q available to consume.
+func newQuotaPool(q int) *quotaPool {
+	qb := &quotaPool{
+		c: make(chan int, 1),
+	}
+	if q > 0 {
+		qb.c <- q
+	} else {
+		qb.quota = q
+	}
+	return qb
+}
+
+// add adds n to the available quota and tries to send it on acquire.
+func (qb *quotaPool) add(n int) {
+	qb.mu.Lock()
+	defer qb.mu.Unlock()
+	qb.quota += n
+	if qb.quota <= 0 {
+		return
+	}
+	select {
+	case qb.c <- qb.quota:
+		qb.quota = 0
+	default:
+	}
+}
+
+// cancel cancels the pending quota sent on acquire, if any.
+func (qb *quotaPool) cancel() {
+	qb.mu.Lock()
+	defer qb.mu.Unlock()
+	select {
+	case n := <-qb.c:
+		qb.quota += n
+	default:
+	}
+}
+
+// reset cancels the pending quota sent on acquired, incremented by v and sends
+// it back on acquire.
+func (qb *quotaPool) reset(v int) {
+	qb.mu.Lock()
+	defer qb.mu.Unlock()
+	select {
+	case n := <-qb.c:
+		qb.quota += n
+	default:
+	}
+	qb.quota += v
+	if qb.quota <= 0 {
+		return
+	}
+	select {
+	case qb.c <- qb.quota:
+		qb.quota = 0
+	default:
+	}
+}
+
+// acquire returns the channel on which available quota amounts are sent.
+func (qb *quotaPool) acquire() <-chan int {
+	return qb.c
+}
+
+// inFlow deals with inbound flow control
+type inFlow struct {
+	// The inbound flow control limit for pending data.
+	limit uint32
+
+	mu sync.Mutex
+	// pendingData is the overall data which have been received but not been
+	// consumed by applications.
+	pendingData uint32
+	// The amount of data the application has consumed but grpc has not sent
+	// window update for them. Used to reduce window update frequency.
+	pendingUpdate uint32
+}
+
+// onData is invoked when some data frame is received. It updates pendingData.
+func (f *inFlow) onData(n uint32) error {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	f.pendingData += n
+	if f.pendingData+f.pendingUpdate > f.limit {
+		return fmt.Errorf("received %d-bytes data exceeding the limit %d bytes", f.pendingData+f.pendingUpdate, f.limit)
+	}
+	return nil
+}
+
+// onRead is invoked when the application reads the data. It returns the window size
+// to be sent to the peer.
+func (f *inFlow) onRead(n uint32) uint32 {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	if f.pendingData == 0 {
+		return 0
+	}
+	f.pendingData -= n
+	f.pendingUpdate += n
+	if f.pendingUpdate >= f.limit/4 {
+		wu := f.pendingUpdate
+		f.pendingUpdate = 0
+		return wu
+	}
+	return 0
+}
+
+func (f *inFlow) resetPendingData() uint32 {
+	f.mu.Lock()
+	defer f.mu.Unlock()
+	n := f.pendingData
+	f.pendingData = 0
+	return n
+}
diff --git a/vendor/google.golang.org/grpc/transport/handler_server.go b/vendor/google.golang.org/grpc/transport/handler_server.go
new file mode 100644
index 0000000..7a4ae07
--- /dev/null
+++ b/vendor/google.golang.org/grpc/transport/handler_server.go
@@ -0,0 +1,393 @@
+/*
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// This file is the implementation of a gRPC server using HTTP/2 which
+// uses the standard Go http2 Server implementation (via the
+// http.Handler interface), rather than speaking low-level HTTP/2
+// frames itself. It is the implementation of *grpc.Server.ServeHTTP.
+
+package transport
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/http2"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/peer"
+)
+
+// NewServerHandlerTransport returns a ServerTransport handling gRPC
+// from inside an http.Handler. It requires that the http Server
+// supports HTTP/2.
+func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request) (ServerTransport, error) {
+	if r.ProtoMajor != 2 {
+		return nil, errors.New("gRPC requires HTTP/2")
+	}
+	if r.Method != "POST" {
+		return nil, errors.New("invalid gRPC request method")
+	}
+	if !strings.Contains(r.Header.Get("Content-Type"), "application/grpc") {
+		return nil, errors.New("invalid gRPC request content-type")
+	}
+	if _, ok := w.(http.Flusher); !ok {
+		return nil, errors.New("gRPC requires a ResponseWriter supporting http.Flusher")
+	}
+	if _, ok := w.(http.CloseNotifier); !ok {
+		return nil, errors.New("gRPC requires a ResponseWriter supporting http.CloseNotifier")
+	}
+
+	st := &serverHandlerTransport{
+		rw:       w,
+		req:      r,
+		closedCh: make(chan struct{}),
+		writes:   make(chan func()),
+	}
+
+	if v := r.Header.Get("grpc-timeout"); v != "" {
+		to, err := timeoutDecode(v)
+		if err != nil {
+			return nil, StreamErrorf(codes.Internal, "malformed time-out: %v", err)
+		}
+		st.timeoutSet = true
+		st.timeout = to
+	}
+
+	var metakv []string
+	if r.Host != "" {
+		metakv = append(metakv, ":authority", r.Host)
+	}
+	for k, vv := range r.Header {
+		k = strings.ToLower(k)
+		if isReservedHeader(k) && !isWhitelistedPseudoHeader(k){
+			continue
+		}
+		for _, v := range vv {
+			if k == "user-agent" {
+				// user-agent is special. Copying logic of http_util.go.
+				if i := strings.LastIndex(v, " "); i == -1 {
+					// There is no application user agent string being set
+					continue
+				} else {
+					v = v[:i]
+				}
+			}
+			metakv = append(metakv, k, v)
+		}
+	}
+	st.headerMD = metadata.Pairs(metakv...)
+
+	return st, nil
+}
+
+// serverHandlerTransport is an implementation of ServerTransport
+// which replies to exactly one gRPC request (exactly one HTTP request),
+// using the net/http.Handler interface. This http.Handler is guaranteed
+// at this point to be speaking over HTTP/2, so it's able to speak valid
+// gRPC.
+type serverHandlerTransport struct {
+	rw               http.ResponseWriter
+	req              *http.Request
+	timeoutSet       bool
+	timeout          time.Duration
+	didCommonHeaders bool
+
+	headerMD metadata.MD
+
+	closeOnce sync.Once
+	closedCh  chan struct{} // closed on Close
+
+	// writes is a channel of code to run serialized in the
+	// ServeHTTP (HandleStreams) goroutine. The channel is closed
+	// when WriteStatus is called.
+	writes chan func()
+}
+
+func (ht *serverHandlerTransport) Close() error {
+	ht.closeOnce.Do(ht.closeCloseChanOnce)
+	return nil
+}
+
+func (ht *serverHandlerTransport) closeCloseChanOnce() { close(ht.closedCh) }
+
+func (ht *serverHandlerTransport) RemoteAddr() net.Addr { return strAddr(ht.req.RemoteAddr) }
+
+// strAddr is a net.Addr backed by either a TCP "ip:port" string, or
+// the empty string if unknown.
+type strAddr string
+
+func (a strAddr) Network() string {
+	if a != "" {
+		// Per the documentation on net/http.Request.RemoteAddr, if this is
+		// set, it's set to the IP:port of the peer (hence, TCP):
+		// https://golang.org/pkg/net/http/#Request
+		//
+		// If we want to support Unix sockets later, we can
+		// add our own grpc-specific convention within the
+		// grpc codebase to set RemoteAddr to a different
+		// format, or probably better: we can attach it to the
+		// context and use that from serverHandlerTransport.RemoteAddr.
+		return "tcp"
+	}
+	return ""
+}
+
+func (a strAddr) String() string { return string(a) }
+
+// do runs fn in the ServeHTTP goroutine.
+func (ht *serverHandlerTransport) do(fn func()) error {
+	select {
+	case ht.writes <- fn:
+		return nil
+	case <-ht.closedCh:
+		return ErrConnClosing
+	}
+}
+
+func (ht *serverHandlerTransport) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
+	err := ht.do(func() {
+		ht.writeCommonHeaders(s)
+
+		// And flush, in case no header or body has been sent yet.
+		// This forces a separation of headers and trailers if this is the
+		// first call (for example, in end2end tests's TestNoService).
+		ht.rw.(http.Flusher).Flush()
+
+		h := ht.rw.Header()
+		h.Set("Grpc-Status", fmt.Sprintf("%d", statusCode))
+		if statusDesc != "" {
+			h.Set("Grpc-Message", statusDesc)
+		}
+		if md := s.Trailer(); len(md) > 0 {
+			for k, vv := range md {
+				// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
+				if isReservedHeader(k) {
+					continue
+				}
+				for _, v := range vv {
+					// http2 ResponseWriter mechanism to
+					// send undeclared Trailers after the
+					// headers have possibly been written.
+					h.Add(http2.TrailerPrefix+k, v)
+				}
+			}
+		}
+	})
+	close(ht.writes)
+	return err
+}
+
+// writeCommonHeaders sets common headers on the first write
+// call (Write, WriteHeader, or WriteStatus).
+func (ht *serverHandlerTransport) writeCommonHeaders(s *Stream) {
+	if ht.didCommonHeaders {
+		return
+	}
+	ht.didCommonHeaders = true
+
+	h := ht.rw.Header()
+	h["Date"] = nil // suppress Date to make tests happy; TODO: restore
+	h.Set("Content-Type", "application/grpc")
+
+	// Predeclare trailers we'll set later in WriteStatus (after the body).
+	// This is a SHOULD in the HTTP RFC, and the way you add (known)
+	// Trailers per the net/http.ResponseWriter contract.
+	// See https://golang.org/pkg/net/http/#ResponseWriter
+	// and https://golang.org/pkg/net/http/#example_ResponseWriter_trailers
+	h.Add("Trailer", "Grpc-Status")
+	h.Add("Trailer", "Grpc-Message")
+
+	if s.sendCompress != "" {
+		h.Set("Grpc-Encoding", s.sendCompress)
+	}
+}
+
+func (ht *serverHandlerTransport) Write(s *Stream, data []byte, opts *Options) error {
+	return ht.do(func() {
+		ht.writeCommonHeaders(s)
+		ht.rw.Write(data)
+		if !opts.Delay {
+			ht.rw.(http.Flusher).Flush()
+		}
+	})
+}
+
+func (ht *serverHandlerTransport) WriteHeader(s *Stream, md metadata.MD) error {
+	return ht.do(func() {
+		ht.writeCommonHeaders(s)
+		h := ht.rw.Header()
+		for k, vv := range md {
+			// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
+			if isReservedHeader(k) {
+				continue
+			}
+			for _, v := range vv {
+				h.Add(k, v)
+			}
+		}
+		ht.rw.WriteHeader(200)
+		ht.rw.(http.Flusher).Flush()
+	})
+}
+
+func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream)) {
+	// With this transport type there will be exactly 1 stream: this HTTP request.
+
+	var ctx context.Context
+	var cancel context.CancelFunc
+	if ht.timeoutSet {
+		ctx, cancel = context.WithTimeout(context.Background(), ht.timeout)
+	} else {
+		ctx, cancel = context.WithCancel(context.Background())
+	}
+
+	// requestOver is closed when either the request's context is done
+	// or the status has been written via WriteStatus.
+	requestOver := make(chan struct{})
+
+	// clientGone receives a single value if peer is gone, either
+	// because the underlying connection is dead or because the
+	// peer sends an http2 RST_STREAM.
+	clientGone := ht.rw.(http.CloseNotifier).CloseNotify()
+	go func() {
+		select {
+		case <-requestOver:
+			return
+		case <-ht.closedCh:
+		case <-clientGone:
+		}
+		cancel()
+	}()
+
+	req := ht.req
+
+	s := &Stream{
+		id:            0,            // irrelevant
+		windowHandler: func(int) {}, // nothing
+		cancel:        cancel,
+		buf:           newRecvBuffer(),
+		st:            ht,
+		method:        req.URL.Path,
+		recvCompress:  req.Header.Get("grpc-encoding"),
+	}
+	pr := &peer.Peer{
+		Addr: ht.RemoteAddr(),
+	}
+	if req.TLS != nil {
+		pr.AuthInfo = credentials.TLSInfo{*req.TLS}
+	}
+	ctx = metadata.NewContext(ctx, ht.headerMD)
+	ctx = peer.NewContext(ctx, pr)
+	s.ctx = newContextWithStream(ctx, s)
+	s.dec = &recvBufferReader{ctx: s.ctx, recv: s.buf}
+
+	// readerDone is closed when the Body.Read-ing goroutine exits.
+	readerDone := make(chan struct{})
+	go func() {
+		defer close(readerDone)
+
+		// TODO: minimize garbage, optimize recvBuffer code/ownership
+		const readSize = 8196
+		for buf := make([]byte, readSize); ; {
+			n, err := req.Body.Read(buf)
+			if n > 0 {
+				s.buf.put(&recvMsg{data: buf[:n:n]})
+				buf = buf[n:]
+			}
+			if err != nil {
+				s.buf.put(&recvMsg{err: mapRecvMsgError(err)})
+				return
+			}
+			if len(buf) == 0 {
+				buf = make([]byte, readSize)
+			}
+		}
+	}()
+
+	// startStream is provided by the *grpc.Server's serveStreams.
+	// It starts a goroutine serving s and exits immediately.
+	// The goroutine that is started is the one that then calls
+	// into ht, calling WriteHeader, Write, WriteStatus, Close, etc.
+	startStream(s)
+
+	ht.runStream()
+	close(requestOver)
+
+	// Wait for reading goroutine to finish.
+	req.Body.Close()
+	<-readerDone
+}
+
+func (ht *serverHandlerTransport) runStream() {
+	for {
+		select {
+		case fn, ok := <-ht.writes:
+			if !ok {
+				return
+			}
+			fn()
+		case <-ht.closedCh:
+			return
+		}
+	}
+}
+
+// mapRecvMsgError returns the non-nil err into the appropriate
+// error value as expected by callers of *grpc.parser.recvMsg.
+// In particular, in can only be:
+//   * io.EOF
+//   * io.ErrUnexpectedEOF
+//   * of type transport.ConnectionError
+//   * of type transport.StreamError
+func mapRecvMsgError(err error) error {
+	if err == io.EOF || err == io.ErrUnexpectedEOF {
+		return err
+	}
+	if se, ok := err.(http2.StreamError); ok {
+		if code, ok := http2ErrConvTab[se.Code]; ok {
+			return StreamError{
+				Code: code,
+				Desc: se.Error(),
+			}
+		}
+	}
+	return ConnectionError{Desc: err.Error()}
+}
diff --git a/vendor/google.golang.org/grpc/transport/http2_client.go b/vendor/google.golang.org/grpc/transport/http2_client.go
new file mode 100644
index 0000000..e624f8d
--- /dev/null
+++ b/vendor/google.golang.org/grpc/transport/http2_client.go
@@ -0,0 +1,953 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package transport
+
+import (
+	"bytes"
+	"io"
+	"math"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/hpack"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/peer"
+)
+
+// http2Client implements the ClientTransport interface with HTTP2.
+type http2Client struct {
+	target    string // server name/addr
+	userAgent string
+	conn      net.Conn             // underlying communication channel
+	authInfo  credentials.AuthInfo // auth info about the connection
+	nextID    uint32               // the next stream ID to be used
+
+	// writableChan synchronizes write access to the transport.
+	// A writer acquires the write lock by sending a value on writableChan
+	// and releases it by receiving from writableChan.
+	writableChan chan int
+	// shutdownChan is closed when Close is called.
+	// Blocking operations should select on shutdownChan to avoid
+	// blocking forever after Close.
+	// TODO(zhaoq): Maybe have a channel context?
+	shutdownChan chan struct{}
+	// errorChan is closed to notify the I/O error to the caller.
+	errorChan chan struct{}
+
+	framer *framer
+	hBuf   *bytes.Buffer  // the buffer for HPACK encoding
+	hEnc   *hpack.Encoder // HPACK encoder
+
+	// controlBuf delivers all the control related tasks (e.g., window
+	// updates, reset streams, and various settings) to the controller.
+	controlBuf *recvBuffer
+	fc         *inFlow
+	// sendQuotaPool provides flow control to outbound message.
+	sendQuotaPool *quotaPool
+	// streamsQuota limits the max number of concurrent streams.
+	streamsQuota *quotaPool
+
+	// The scheme used: https if TLS is on, http otherwise.
+	scheme string
+
+	authCreds []credentials.Credentials
+
+	mu            sync.Mutex     // guard the following variables
+	state         transportState // the state of underlying connection
+	activeStreams map[uint32]*Stream
+	// The max number of concurrent streams
+	maxStreams int
+	// the per-stream outbound flow control window size set by the peer.
+	streamSendQuota uint32
+}
+
+// newHTTP2Client constructs a connected ClientTransport to addr based on HTTP2
+// and starts to receive messages on it. Non-nil error returns if construction
+// fails.
+func newHTTP2Client(addr string, opts *ConnectOptions) (_ ClientTransport, err error) {
+	if opts.Dialer == nil {
+		// Set the default Dialer.
+		opts.Dialer = func(addr string, timeout time.Duration) (net.Conn, error) {
+			return net.DialTimeout("tcp", addr, timeout)
+		}
+	}
+	scheme := "http"
+	startT := time.Now()
+	timeout := opts.Timeout
+	conn, connErr := opts.Dialer(addr, timeout)
+	if connErr != nil {
+		return nil, ConnectionErrorf("transport: %v", connErr)
+	}
+	var authInfo credentials.AuthInfo
+	for _, c := range opts.AuthOptions {
+		if ccreds, ok := c.(credentials.TransportAuthenticator); ok {
+			scheme = "https"
+			// TODO(zhaoq): Now the first TransportAuthenticator is used if there are
+			// multiple ones provided. Revisit this if it is not appropriate. Probably
+			// place the ClientTransport construction into a separate function to make
+			// things clear.
+			if timeout > 0 {
+				timeout -= time.Since(startT)
+			}
+			conn, authInfo, connErr = ccreds.ClientHandshake(addr, conn, timeout)
+			break
+		}
+	}
+	if connErr != nil {
+		return nil, ConnectionErrorf("transport: %v", connErr)
+	}
+	defer func() {
+		if err != nil {
+			conn.Close()
+		}
+	}()
+	ua := primaryUA
+	if opts.UserAgent != "" {
+		ua = opts.UserAgent + " " + ua
+	}
+	var buf bytes.Buffer
+	t := &http2Client{
+		target:    addr,
+		userAgent: ua,
+		conn:      conn,
+		authInfo:  authInfo,
+		// The client initiated stream id is odd starting from 1.
+		nextID:          1,
+		writableChan:    make(chan int, 1),
+		shutdownChan:    make(chan struct{}),
+		errorChan:       make(chan struct{}),
+		framer:          newFramer(conn),
+		hBuf:            &buf,
+		hEnc:            hpack.NewEncoder(&buf),
+		controlBuf:      newRecvBuffer(),
+		fc:              &inFlow{limit: initialConnWindowSize},
+		sendQuotaPool:   newQuotaPool(defaultWindowSize),
+		scheme:          scheme,
+		state:           reachable,
+		activeStreams:   make(map[uint32]*Stream),
+		authCreds:       opts.AuthOptions,
+		maxStreams:      math.MaxInt32,
+		streamSendQuota: defaultWindowSize,
+	}
+	// Start the reader goroutine for incoming message. Each transport has
+	// a dedicated goroutine which reads HTTP2 frame from network. Then it
+	// dispatches the frame to the corresponding stream entity.
+	go t.reader()
+	// Send connection preface to server.
+	n, err := t.conn.Write(clientPreface)
+	if err != nil {
+		t.Close()
+		return nil, ConnectionErrorf("transport: %v", err)
+	}
+	if n != len(clientPreface) {
+		t.Close()
+		return nil, ConnectionErrorf("transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
+	}
+	if initialWindowSize != defaultWindowSize {
+		err = t.framer.writeSettings(true, http2.Setting{http2.SettingInitialWindowSize, uint32(initialWindowSize)})
+	} else {
+		err = t.framer.writeSettings(true)
+	}
+	if err != nil {
+		t.Close()
+		return nil, ConnectionErrorf("transport: %v", err)
+	}
+	// Adjust the connection flow control window if needed.
+	if delta := uint32(initialConnWindowSize - defaultWindowSize); delta > 0 {
+		if err := t.framer.writeWindowUpdate(true, 0, delta); err != nil {
+			t.Close()
+			return nil, ConnectionErrorf("transport: %v", err)
+		}
+	}
+	go t.controller()
+	t.writableChan <- 0
+	return t, nil
+}
+
+func (t *http2Client) newStream(ctx context.Context, callHdr *CallHdr) *Stream {
+	// TODO(zhaoq): Handle uint32 overflow of Stream.id.
+	s := &Stream{
+		id:            t.nextID,
+		method:        callHdr.Method,
+		sendCompress:  callHdr.SendCompress,
+		buf:           newRecvBuffer(),
+		fc:            &inFlow{limit: initialWindowSize},
+		sendQuotaPool: newQuotaPool(int(t.streamSendQuota)),
+		headerChan:    make(chan struct{}),
+	}
+	t.nextID += 2
+	s.windowHandler = func(n int) {
+		t.updateWindow(s, uint32(n))
+	}
+	// Make a stream be able to cancel the pending operations by itself.
+	s.ctx, s.cancel = context.WithCancel(ctx)
+	s.dec = &recvBufferReader{
+		ctx:  s.ctx,
+		recv: s.buf,
+	}
+	return s
+}
+
+// NewStream creates a stream and register it into the transport as "active"
+// streams.
+func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Stream, err error) {
+	// Record the timeout value on the context.
+	var timeout time.Duration
+	if dl, ok := ctx.Deadline(); ok {
+		timeout = dl.Sub(time.Now())
+	}
+	select {
+	case <-ctx.Done():
+		return nil, ContextErr(ctx.Err())
+	default:
+	}
+	pr := &peer.Peer{
+		Addr: t.conn.RemoteAddr(),
+	}
+	// Attach Auth info if there is any.
+	if t.authInfo != nil {
+		pr.AuthInfo = t.authInfo
+	}
+	ctx = peer.NewContext(ctx, pr)
+	authData := make(map[string]string)
+	for _, c := range t.authCreds {
+		// Construct URI required to get auth request metadata.
+		var port string
+		if pos := strings.LastIndex(t.target, ":"); pos != -1 {
+			// Omit port if it is the default one.
+			if t.target[pos+1:] != "443" {
+				port = ":" + t.target[pos+1:]
+			}
+		}
+		pos := strings.LastIndex(callHdr.Method, "/")
+		if pos == -1 {
+			return nil, StreamErrorf(codes.InvalidArgument, "transport: malformed method name: %q", callHdr.Method)
+		}
+		audience := "https://" + callHdr.Host + port + callHdr.Method[:pos]
+		data, err := c.GetRequestMetadata(ctx, audience)
+		if err != nil {
+			return nil, StreamErrorf(codes.InvalidArgument, "transport: %v", err)
+		}
+		for k, v := range data {
+			authData[k] = v
+		}
+	}
+	t.mu.Lock()
+	if t.activeStreams == nil {
+		t.mu.Unlock()
+		return nil, ErrConnClosing
+	}
+	if t.state != reachable {
+		t.mu.Unlock()
+		return nil, ErrConnClosing
+	}
+	checkStreamsQuota := t.streamsQuota != nil
+	t.mu.Unlock()
+	if checkStreamsQuota {
+		sq, err := wait(ctx, t.shutdownChan, t.streamsQuota.acquire())
+		if err != nil {
+			return nil, err
+		}
+		// Returns the quota balance back.
+		if sq > 1 {
+			t.streamsQuota.add(sq - 1)
+		}
+	}
+	if _, err := wait(ctx, t.shutdownChan, t.writableChan); err != nil {
+		// Return the quota back now because there is no stream returned to the caller.
+		if _, ok := err.(StreamError); ok && checkStreamsQuota {
+			t.streamsQuota.add(1)
+		}
+		return nil, err
+	}
+	t.mu.Lock()
+	if t.state != reachable {
+		t.mu.Unlock()
+		return nil, ErrConnClosing
+	}
+	s := t.newStream(ctx, callHdr)
+	t.activeStreams[s.id] = s
+
+	// This stream is not counted when applySetings(...) initialize t.streamsQuota.
+	// Reset t.streamsQuota to the right value.
+	var reset bool
+	if !checkStreamsQuota && t.streamsQuota != nil {
+		reset = true
+	}
+	t.mu.Unlock()
+	if reset {
+		t.streamsQuota.reset(-1)
+	}
+
+	// HPACK encodes various headers. Note that once WriteField(...) is
+	// called, the corresponding headers/continuation frame has to be sent
+	// because hpack.Encoder is stateful.
+	t.hBuf.Reset()
+	t.hEnc.WriteField(hpack.HeaderField{Name: ":method", Value: "POST"})
+	t.hEnc.WriteField(hpack.HeaderField{Name: ":scheme", Value: t.scheme})
+	t.hEnc.WriteField(hpack.HeaderField{Name: ":path", Value: callHdr.Method})
+	t.hEnc.WriteField(hpack.HeaderField{Name: ":authority", Value: callHdr.Host})
+	t.hEnc.WriteField(hpack.HeaderField{Name: "content-type", Value: "application/grpc"})
+	t.hEnc.WriteField(hpack.HeaderField{Name: "user-agent", Value: t.userAgent})
+	t.hEnc.WriteField(hpack.HeaderField{Name: "te", Value: "trailers"})
+
+	if callHdr.SendCompress != "" {
+		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: callHdr.SendCompress})
+	}
+	if timeout > 0 {
+		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-timeout", Value: timeoutEncode(timeout)})
+	}
+	for k, v := range authData {
+		// Capital header names are illegal in HTTP/2.
+		k = strings.ToLower(k)
+		t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: v})
+	}
+	var (
+		hasMD      bool
+		endHeaders bool
+	)
+	if md, ok := metadata.FromContext(ctx); ok {
+		hasMD = true
+		for k, v := range md {
+			// HTTP doesn't allow you to set pseudoheaders after non pseudoheaders were set.
+			if isReservedHeader(k) {
+				continue
+			}
+			for _, entry := range v {
+				t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
+			}
+		}
+	}
+	first := true
+	// Sends the headers in a single batch even when they span multiple frames.
+	for !endHeaders {
+		size := t.hBuf.Len()
+		if size > http2MaxFrameLen {
+			size = http2MaxFrameLen
+		} else {
+			endHeaders = true
+		}
+		var flush bool
+		if endHeaders && (hasMD || callHdr.Flush) {
+			flush = true
+		}
+		if first {
+			// Sends a HeadersFrame to server to start a new stream.
+			p := http2.HeadersFrameParam{
+				StreamID:      s.id,
+				BlockFragment: t.hBuf.Next(size),
+				EndStream:     false,
+				EndHeaders:    endHeaders,
+			}
+			// Do a force flush for the buffered frames iff it is the last headers frame
+			// and there is header metadata to be sent. Otherwise, there is flushing until
+			// the corresponding data frame is written.
+			err = t.framer.writeHeaders(flush, p)
+			first = false
+		} else {
+			// Sends Continuation frames for the leftover headers.
+			err = t.framer.writeContinuation(flush, s.id, endHeaders, t.hBuf.Next(size))
+		}
+		if err != nil {
+			t.notifyError(err)
+			return nil, ConnectionErrorf("transport: %v", err)
+		}
+	}
+	t.writableChan <- 0
+	return s, nil
+}
+
+// CloseStream clears the footprint of a stream when the stream is not needed any more.
+// This must not be executed in reader's goroutine.
+func (t *http2Client) CloseStream(s *Stream, err error) {
+	var updateStreams bool
+	t.mu.Lock()
+	if t.activeStreams == nil {
+		t.mu.Unlock()
+		return
+	}
+	if t.streamsQuota != nil {
+		updateStreams = true
+	}
+	if t.state == draining && len(t.activeStreams) == 1 {
+		// The transport is draining and s is the last live stream on t.
+		t.mu.Unlock()
+		t.Close()
+		return
+	}
+	delete(t.activeStreams, s.id)
+	t.mu.Unlock()
+	if updateStreams {
+		t.streamsQuota.add(1)
+	}
+	// In case stream sending and receiving are invoked in separate
+	// goroutines (e.g., bi-directional streaming), the caller needs
+	// to call cancel on the stream to interrupt the blocking on
+	// other goroutines.
+	s.cancel()
+	s.mu.Lock()
+	if q := s.fc.resetPendingData(); q > 0 {
+		if n := t.fc.onRead(q); n > 0 {
+			t.controlBuf.put(&windowUpdate{0, n})
+		}
+	}
+	if s.state == streamDone {
+		s.mu.Unlock()
+		return
+	}
+	if !s.headerDone {
+		close(s.headerChan)
+		s.headerDone = true
+	}
+	s.state = streamDone
+	s.mu.Unlock()
+	if _, ok := err.(StreamError); ok {
+		t.controlBuf.put(&resetStream{s.id, http2.ErrCodeCancel})
+	}
+}
+
+// Close kicks off the shutdown process of the transport. This should be called
+// only once on a transport. Once it is called, the transport should not be
+// accessed any more.
+func (t *http2Client) Close() (err error) {
+	t.mu.Lock()
+	if t.state == reachable {
+		close(t.errorChan)
+	}
+	if t.state == closing {
+		t.mu.Unlock()
+		return
+	}
+	t.state = closing
+	t.mu.Unlock()
+	close(t.shutdownChan)
+	err = t.conn.Close()
+	t.mu.Lock()
+	streams := t.activeStreams
+	t.activeStreams = nil
+	t.mu.Unlock()
+	// Notify all active streams.
+	for _, s := range streams {
+		s.mu.Lock()
+		if !s.headerDone {
+			close(s.headerChan)
+			s.headerDone = true
+		}
+		s.mu.Unlock()
+		s.write(recvMsg{err: ErrConnClosing})
+	}
+	return
+}
+
+func (t *http2Client) GracefulClose() error {
+	t.mu.Lock()
+	if t.state == closing {
+		t.mu.Unlock()
+		return nil
+	}
+	if t.state == draining {
+		t.mu.Unlock()
+		return nil
+	}
+	t.state = draining
+	active := len(t.activeStreams)
+	t.mu.Unlock()
+	if active == 0 {
+		return t.Close()
+	}
+	return nil
+}
+
+// Write formats the data into HTTP2 data frame(s) and sends it out. The caller
+// should proceed only if Write returns nil.
+// TODO(zhaoq): opts.Delay is ignored in this implementation. Support it later
+// if it improves the performance.
+func (t *http2Client) Write(s *Stream, data []byte, opts *Options) error {
+	r := bytes.NewBuffer(data)
+	for {
+		var p []byte
+		if r.Len() > 0 {
+			size := http2MaxFrameLen
+			s.sendQuotaPool.add(0)
+			// Wait until the stream has some quota to send the data.
+			sq, err := wait(s.ctx, t.shutdownChan, s.sendQuotaPool.acquire())
+			if err != nil {
+				return err
+			}
+			t.sendQuotaPool.add(0)
+			// Wait until the transport has some quota to send the data.
+			tq, err := wait(s.ctx, t.shutdownChan, t.sendQuotaPool.acquire())
+			if err != nil {
+				if _, ok := err.(StreamError); ok {
+					t.sendQuotaPool.cancel()
+				}
+				return err
+			}
+			if sq < size {
+				size = sq
+			}
+			if tq < size {
+				size = tq
+			}
+			p = r.Next(size)
+			ps := len(p)
+			if ps < sq {
+				// Overbooked stream quota. Return it back.
+				s.sendQuotaPool.add(sq - ps)
+			}
+			if ps < tq {
+				// Overbooked transport quota. Return it back.
+				t.sendQuotaPool.add(tq - ps)
+			}
+		}
+		var (
+			endStream  bool
+			forceFlush bool
+		)
+		if opts.Last && r.Len() == 0 {
+			endStream = true
+		}
+		// Indicate there is a writer who is about to write a data frame.
+		t.framer.adjustNumWriters(1)
+		// Got some quota. Try to acquire writing privilege on the transport.
+		if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
+			if _, ok := err.(StreamError); ok {
+				// Return the connection quota back.
+				t.sendQuotaPool.add(len(p))
+			}
+			if t.framer.adjustNumWriters(-1) == 0 {
+				// This writer is the last one in this batch and has the
+				// responsibility to flush the buffered frames. It queues
+				// a flush request to controlBuf instead of flushing directly
+				// in order to avoid the race with other writing or flushing.
+				t.controlBuf.put(&flushIO{})
+			}
+			return err
+		}
+		select {
+		case <-s.ctx.Done():
+			t.sendQuotaPool.add(len(p))
+			if t.framer.adjustNumWriters(-1) == 0 {
+				t.controlBuf.put(&flushIO{})
+			}
+			t.writableChan <- 0
+			return ContextErr(s.ctx.Err())
+		default:
+		}
+		if r.Len() == 0 && t.framer.adjustNumWriters(0) == 1 {
+			// Do a force flush iff this is last frame for the entire gRPC message
+			// and the caller is the only writer at this moment.
+			forceFlush = true
+		}
+		// If WriteData fails, all the pending streams will be handled
+		// by http2Client.Close(). No explicit CloseStream() needs to be
+		// invoked.
+		if err := t.framer.writeData(forceFlush, s.id, endStream, p); err != nil {
+			t.notifyError(err)
+			return ConnectionErrorf("transport: %v", err)
+		}
+		if t.framer.adjustNumWriters(-1) == 0 {
+			t.framer.flushWrite()
+		}
+		t.writableChan <- 0
+		if r.Len() == 0 {
+			break
+		}
+	}
+	if !opts.Last {
+		return nil
+	}
+	s.mu.Lock()
+	if s.state != streamDone {
+		if s.state == streamReadDone {
+			s.state = streamDone
+		} else {
+			s.state = streamWriteDone
+		}
+	}
+	s.mu.Unlock()
+	return nil
+}
+
+func (t *http2Client) getStream(f http2.Frame) (*Stream, bool) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	s, ok := t.activeStreams[f.Header().StreamID]
+	return s, ok
+}
+
+// updateWindow adjusts the inbound quota for the stream and the transport.
+// Window updates will deliver to the controller for sending when
+// the cumulative quota exceeds the corresponding threshold.
+func (t *http2Client) updateWindow(s *Stream, n uint32) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.state == streamDone {
+		return
+	}
+	if w := t.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{0, w})
+	}
+	if w := s.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{s.id, w})
+	}
+}
+
+func (t *http2Client) handleData(f *http2.DataFrame) {
+	size := len(f.Data())
+	if err := t.fc.onData(uint32(size)); err != nil {
+		t.notifyError(ConnectionErrorf("%v", err))
+		return
+	}
+	// Select the right stream to dispatch.
+	s, ok := t.getStream(f)
+	if !ok {
+		if w := t.fc.onRead(uint32(size)); w > 0 {
+			t.controlBuf.put(&windowUpdate{0, w})
+		}
+		return
+	}
+	if size > 0 {
+		s.mu.Lock()
+		if s.state == streamDone {
+			s.mu.Unlock()
+			// The stream has been closed. Release the corresponding quota.
+			if w := t.fc.onRead(uint32(size)); w > 0 {
+				t.controlBuf.put(&windowUpdate{0, w})
+			}
+			return
+		}
+		if err := s.fc.onData(uint32(size)); err != nil {
+			s.state = streamDone
+			s.statusCode = codes.Internal
+			s.statusDesc = err.Error()
+			s.mu.Unlock()
+			s.write(recvMsg{err: io.EOF})
+			t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
+			return
+		}
+		s.mu.Unlock()
+		// TODO(bradfitz, zhaoq): A copy is required here because there is no
+		// guarantee f.Data() is consumed before the arrival of next frame.
+		// Can this copy be eliminated?
+		data := make([]byte, size)
+		copy(data, f.Data())
+		s.write(recvMsg{data: data})
+	}
+	// The server has closed the stream without sending trailers.  Record that
+	// the read direction is closed, and set the status appropriately.
+	if f.FrameHeader.Flags.Has(http2.FlagDataEndStream) {
+		s.mu.Lock()
+		if s.state == streamWriteDone {
+			s.state = streamDone
+		} else {
+			s.state = streamReadDone
+		}
+		s.statusCode = codes.Internal
+		s.statusDesc = "server closed the stream without sending trailers"
+		s.mu.Unlock()
+		s.write(recvMsg{err: io.EOF})
+	}
+}
+
+func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
+	s, ok := t.getStream(f)
+	if !ok {
+		return
+	}
+	s.mu.Lock()
+	if s.state == streamDone {
+		s.mu.Unlock()
+		return
+	}
+	s.state = streamDone
+	if !s.headerDone {
+		close(s.headerChan)
+		s.headerDone = true
+	}
+	s.statusCode, ok = http2ErrConvTab[http2.ErrCode(f.ErrCode)]
+	if !ok {
+		grpclog.Println("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error ", f.ErrCode)
+		s.statusCode = codes.Unknown
+	}
+	s.mu.Unlock()
+	s.write(recvMsg{err: io.EOF})
+}
+
+func (t *http2Client) handleSettings(f *http2.SettingsFrame) {
+	if f.IsAck() {
+		return
+	}
+	var ss []http2.Setting
+	f.ForeachSetting(func(s http2.Setting) error {
+		ss = append(ss, s)
+		return nil
+	})
+	// The settings will be applied once the ack is sent.
+	t.controlBuf.put(&settings{ack: true, ss: ss})
+}
+
+func (t *http2Client) handlePing(f *http2.PingFrame) {
+	pingAck := &ping{ack: true}
+	copy(pingAck.data[:], f.Data[:])
+	t.controlBuf.put(pingAck)
+}
+
+func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
+	// TODO(zhaoq): GoAwayFrame handler to be implemented
+}
+
+func (t *http2Client) handleWindowUpdate(f *http2.WindowUpdateFrame) {
+	id := f.Header().StreamID
+	incr := f.Increment
+	if id == 0 {
+		t.sendQuotaPool.add(int(incr))
+		return
+	}
+	if s, ok := t.getStream(f); ok {
+		s.sendQuotaPool.add(int(incr))
+	}
+}
+
+// operateHeaders takes action on the decoded headers.
+func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
+	s, ok := t.getStream(frame)
+	if !ok {
+		return
+	}
+	var state decodeState
+	for _, hf := range frame.Fields {
+		state.processHeaderField(hf)
+	}
+	if state.err != nil {
+		s.write(recvMsg{err: state.err})
+		// Something wrong. Stops reading even when there is remaining.
+		return
+	}
+
+	endStream := frame.StreamEnded()
+
+	s.mu.Lock()
+	if !endStream {
+		s.recvCompress = state.encoding
+	}
+	if !s.headerDone {
+		if !endStream && len(state.mdata) > 0 {
+			s.header = state.mdata
+		}
+		close(s.headerChan)
+		s.headerDone = true
+	}
+	if !endStream || s.state == streamDone {
+		s.mu.Unlock()
+		return
+	}
+
+	if len(state.mdata) > 0 {
+		s.trailer = state.mdata
+	}
+	s.state = streamDone
+	s.statusCode = state.statusCode
+	s.statusDesc = state.statusDesc
+	s.mu.Unlock()
+
+	s.write(recvMsg{err: io.EOF})
+}
+
+func handleMalformedHTTP2(s *Stream, err error) {
+	s.mu.Lock()
+	if !s.headerDone {
+		close(s.headerChan)
+		s.headerDone = true
+	}
+	s.mu.Unlock()
+	s.write(recvMsg{err: err})
+}
+
+// reader runs as a separate goroutine in charge of reading data from network
+// connection.
+//
+// TODO(zhaoq): currently one reader per transport. Investigate whether this is
+// optimal.
+// TODO(zhaoq): Check the validity of the incoming frame sequence.
+func (t *http2Client) reader() {
+	// Check the validity of server preface.
+	frame, err := t.framer.readFrame()
+	if err != nil {
+		t.notifyError(err)
+		return
+	}
+	sf, ok := frame.(*http2.SettingsFrame)
+	if !ok {
+		t.notifyError(err)
+		return
+	}
+	t.handleSettings(sf)
+
+	// loop to keep reading incoming messages on this transport.
+	for {
+		frame, err := t.framer.readFrame()
+		if err != nil {
+			// Abort an active stream if the http2.Framer returns a
+			// http2.StreamError. This can happen only if the server's response
+			// is malformed http2.
+			if se, ok := err.(http2.StreamError); ok {
+				t.mu.Lock()
+				s := t.activeStreams[se.StreamID]
+				t.mu.Unlock()
+				if s != nil {
+					// use error detail to provide better err message
+					handleMalformedHTTP2(s, StreamErrorf(http2ErrConvTab[se.Code], "%v", t.framer.errorDetail()))
+				}
+				continue
+			} else {
+				// Transport error.
+				t.notifyError(err)
+				return
+			}
+		}
+		switch frame := frame.(type) {
+		case *http2.MetaHeadersFrame:
+			t.operateHeaders(frame)
+		case *http2.DataFrame:
+			t.handleData(frame)
+		case *http2.RSTStreamFrame:
+			t.handleRSTStream(frame)
+		case *http2.SettingsFrame:
+			t.handleSettings(frame)
+		case *http2.PingFrame:
+			t.handlePing(frame)
+		case *http2.GoAwayFrame:
+			t.handleGoAway(frame)
+		case *http2.WindowUpdateFrame:
+			t.handleWindowUpdate(frame)
+		default:
+			grpclog.Printf("transport: http2Client.reader got unhandled frame type %v.", frame)
+		}
+	}
+}
+
+func (t *http2Client) applySettings(ss []http2.Setting) {
+	for _, s := range ss {
+		switch s.ID {
+		case http2.SettingMaxConcurrentStreams:
+			// TODO(zhaoq): This is a hack to avoid significant refactoring of the
+			// code to deal with the unrealistic int32 overflow. Probably will try
+			// to find a better way to handle this later.
+			if s.Val > math.MaxInt32 {
+				s.Val = math.MaxInt32
+			}
+			t.mu.Lock()
+			reset := t.streamsQuota != nil
+			if !reset {
+				t.streamsQuota = newQuotaPool(int(s.Val) - len(t.activeStreams))
+			}
+			ms := t.maxStreams
+			t.maxStreams = int(s.Val)
+			t.mu.Unlock()
+			if reset {
+				t.streamsQuota.reset(int(s.Val) - ms)
+			}
+		case http2.SettingInitialWindowSize:
+			t.mu.Lock()
+			for _, stream := range t.activeStreams {
+				// Adjust the sending quota for each stream.
+				stream.sendQuotaPool.reset(int(s.Val - t.streamSendQuota))
+			}
+			t.streamSendQuota = s.Val
+			t.mu.Unlock()
+		}
+	}
+}
+
+// controller running in a separate goroutine takes charge of sending control
+// frames (e.g., window update, reset stream, setting, etc.) to the server.
+func (t *http2Client) controller() {
+	for {
+		select {
+		case i := <-t.controlBuf.get():
+			t.controlBuf.load()
+			select {
+			case <-t.writableChan:
+				switch i := i.(type) {
+				case *windowUpdate:
+					t.framer.writeWindowUpdate(true, i.streamID, i.increment)
+				case *settings:
+					if i.ack {
+						t.framer.writeSettingsAck(true)
+						t.applySettings(i.ss)
+					} else {
+						t.framer.writeSettings(true, i.ss...)
+					}
+				case *resetStream:
+					t.framer.writeRSTStream(true, i.streamID, i.code)
+				case *flushIO:
+					t.framer.flushWrite()
+				case *ping:
+					t.framer.writePing(true, i.ack, i.data)
+				default:
+					grpclog.Printf("transport: http2Client.controller got unexpected item type %v\n", i)
+				}
+				t.writableChan <- 0
+				continue
+			case <-t.shutdownChan:
+				return
+			}
+		case <-t.shutdownChan:
+			return
+		}
+	}
+}
+
+func (t *http2Client) Error() <-chan struct{} {
+	return t.errorChan
+}
+
+func (t *http2Client) notifyError(err error) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	// make sure t.errorChan is closed only once.
+	if t.state == reachable {
+		t.state = unreachable
+		close(t.errorChan)
+		grpclog.Printf("transport: http2Client.notifyError got notified that the client transport was broken %v.", err)
+	}
+}
diff --git a/vendor/google.golang.org/grpc/transport/http2_server.go b/vendor/google.golang.org/grpc/transport/http2_server.go
new file mode 100644
index 0000000..1c4d585
--- /dev/null
+++ b/vendor/google.golang.org/grpc/transport/http2_server.go
@@ -0,0 +1,743 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package transport
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"math"
+	"net"
+	"strconv"
+	"sync"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/hpack"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/peer"
+)
+
+// ErrIllegalHeaderWrite indicates that setting header is illegal because of
+// the stream's state.
+var ErrIllegalHeaderWrite = errors.New("transport: the stream is done or WriteHeader was already called")
+
+// http2Server implements the ServerTransport interface with HTTP2.
+type http2Server struct {
+	conn        net.Conn
+	maxStreamID uint32               // max stream ID ever seen
+	authInfo    credentials.AuthInfo // auth info about the connection
+	// writableChan synchronizes write access to the transport.
+	// A writer acquires the write lock by receiving a value on writableChan
+	// and releases it by sending on writableChan.
+	writableChan chan int
+	// shutdownChan is closed when Close is called.
+	// Blocking operations should select on shutdownChan to avoid
+	// blocking forever after Close.
+	shutdownChan chan struct{}
+	framer       *framer
+	hBuf         *bytes.Buffer  // the buffer for HPACK encoding
+	hEnc         *hpack.Encoder // HPACK encoder
+
+	// The max number of concurrent streams.
+	maxStreams uint32
+	// controlBuf delivers all the control related tasks (e.g., window
+	// updates, reset streams, and various settings) to the controller.
+	controlBuf *recvBuffer
+	fc         *inFlow
+	// sendQuotaPool provides flow control to outbound message.
+	sendQuotaPool *quotaPool
+
+	mu            sync.Mutex // guard the following
+	state         transportState
+	activeStreams map[uint32]*Stream
+	// the per-stream outbound flow control window size set by the peer.
+	streamSendQuota uint32
+}
+
+// newHTTP2Server constructs a ServerTransport based on HTTP2. ConnectionError is
+// returned if something goes wrong.
+func newHTTP2Server(conn net.Conn, maxStreams uint32, authInfo credentials.AuthInfo) (_ ServerTransport, err error) {
+	framer := newFramer(conn)
+	// Send initial settings as connection preface to client.
+	var settings []http2.Setting
+	// TODO(zhaoq): Have a better way to signal "no limit" because 0 is
+	// permitted in the HTTP2 spec.
+	if maxStreams == 0 {
+		maxStreams = math.MaxUint32
+	} else {
+		settings = append(settings, http2.Setting{http2.SettingMaxConcurrentStreams, maxStreams})
+	}
+	if initialWindowSize != defaultWindowSize {
+		settings = append(settings, http2.Setting{http2.SettingInitialWindowSize, uint32(initialWindowSize)})
+	}
+	if err := framer.writeSettings(true, settings...); err != nil {
+		return nil, ConnectionErrorf("transport: %v", err)
+	}
+	// Adjust the connection flow control window if needed.
+	if delta := uint32(initialConnWindowSize - defaultWindowSize); delta > 0 {
+		if err := framer.writeWindowUpdate(true, 0, delta); err != nil {
+			return nil, ConnectionErrorf("transport: %v", err)
+		}
+	}
+	var buf bytes.Buffer
+	t := &http2Server{
+		conn:            conn,
+		authInfo:        authInfo,
+		framer:          framer,
+		hBuf:            &buf,
+		hEnc:            hpack.NewEncoder(&buf),
+		maxStreams:      maxStreams,
+		controlBuf:      newRecvBuffer(),
+		fc:              &inFlow{limit: initialConnWindowSize},
+		sendQuotaPool:   newQuotaPool(defaultWindowSize),
+		state:           reachable,
+		writableChan:    make(chan int, 1),
+		shutdownChan:    make(chan struct{}),
+		activeStreams:   make(map[uint32]*Stream),
+		streamSendQuota: defaultWindowSize,
+	}
+	go t.controller()
+	t.writableChan <- 0
+	return t, nil
+}
+
+// operateHeader takes action on the decoded headers.
+func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(*Stream)) {
+	buf := newRecvBuffer()
+	s := &Stream{
+		id:  frame.Header().StreamID,
+		st:  t,
+		buf: buf,
+		fc:  &inFlow{limit: initialWindowSize},
+	}
+
+	var state decodeState
+	for _, hf := range frame.Fields {
+		state.processHeaderField(hf)
+	}
+	if err := state.err; err != nil {
+		if se, ok := err.(StreamError); ok {
+			t.controlBuf.put(&resetStream{s.id, statusCodeConvTab[se.Code]})
+		}
+		return
+	}
+
+	if frame.StreamEnded() {
+		// s is just created by the caller. No lock needed.
+		s.state = streamReadDone
+	}
+	s.recvCompress = state.encoding
+	if state.timeoutSet {
+		s.ctx, s.cancel = context.WithTimeout(context.TODO(), state.timeout)
+	} else {
+		s.ctx, s.cancel = context.WithCancel(context.TODO())
+	}
+	pr := &peer.Peer{
+		Addr: t.conn.RemoteAddr(),
+	}
+	// Attach Auth info if there is any.
+	if t.authInfo != nil {
+		pr.AuthInfo = t.authInfo
+	}
+	s.ctx = peer.NewContext(s.ctx, pr)
+	// Cache the current stream to the context so that the server application
+	// can find out. Required when the server wants to send some metadata
+	// back to the client (unary call only).
+	s.ctx = newContextWithStream(s.ctx, s)
+	// Attach the received metadata to the context.
+	if len(state.mdata) > 0 {
+		s.ctx = metadata.NewContext(s.ctx, state.mdata)
+	}
+
+	s.dec = &recvBufferReader{
+		ctx:  s.ctx,
+		recv: s.buf,
+	}
+	s.recvCompress = state.encoding
+	s.method = state.method
+	t.mu.Lock()
+	if t.state != reachable {
+		t.mu.Unlock()
+		return
+	}
+	if uint32(len(t.activeStreams)) >= t.maxStreams {
+		t.mu.Unlock()
+		t.controlBuf.put(&resetStream{s.id, http2.ErrCodeRefusedStream})
+		return
+	}
+	s.sendQuotaPool = newQuotaPool(int(t.streamSendQuota))
+	t.activeStreams[s.id] = s
+	t.mu.Unlock()
+	s.windowHandler = func(n int) {
+		t.updateWindow(s, uint32(n))
+	}
+	handle(s)
+}
+
+// HandleStreams receives incoming streams using the given handler. This is
+// typically run in a separate goroutine.
+func (t *http2Server) HandleStreams(handle func(*Stream)) {
+	// Check the validity of client preface.
+	preface := make([]byte, len(clientPreface))
+	if _, err := io.ReadFull(t.conn, preface); err != nil {
+		grpclog.Printf("transport: http2Server.HandleStreams failed to receive the preface from client: %v", err)
+		t.Close()
+		return
+	}
+	if !bytes.Equal(preface, clientPreface) {
+		grpclog.Printf("transport: http2Server.HandleStreams received bogus greeting from client: %q", preface)
+		t.Close()
+		return
+	}
+
+	frame, err := t.framer.readFrame()
+	if err != nil {
+		grpclog.Printf("transport: http2Server.HandleStreams failed to read frame: %v", err)
+		t.Close()
+		return
+	}
+	sf, ok := frame.(*http2.SettingsFrame)
+	if !ok {
+		grpclog.Printf("transport: http2Server.HandleStreams saw invalid preface type %T from client", frame)
+		t.Close()
+		return
+	}
+	t.handleSettings(sf)
+
+	for {
+		frame, err := t.framer.readFrame()
+		if err != nil {
+			if se, ok := err.(http2.StreamError); ok {
+				t.mu.Lock()
+				s := t.activeStreams[se.StreamID]
+				t.mu.Unlock()
+				if s != nil {
+					t.closeStream(s)
+				}
+				t.controlBuf.put(&resetStream{se.StreamID, se.Code})
+				continue
+			}
+			t.Close()
+			return
+		}
+		switch frame := frame.(type) {
+		case *http2.MetaHeadersFrame:
+			id := frame.Header().StreamID
+			if id%2 != 1 || id <= t.maxStreamID {
+				// illegal gRPC stream id.
+				grpclog.Println("transport: http2Server.HandleStreams received an illegal stream id: ", id)
+				t.Close()
+				break
+			}
+			t.maxStreamID = id
+			t.operateHeaders(frame, handle)
+		case *http2.DataFrame:
+			t.handleData(frame)
+		case *http2.RSTStreamFrame:
+			t.handleRSTStream(frame)
+		case *http2.SettingsFrame:
+			t.handleSettings(frame)
+		case *http2.PingFrame:
+			t.handlePing(frame)
+		case *http2.WindowUpdateFrame:
+			t.handleWindowUpdate(frame)
+		case *http2.GoAwayFrame:
+			break
+		default:
+			grpclog.Printf("transport: http2Server.HandleStreams found unhandled frame type %v.", frame)
+		}
+	}
+}
+
+func (t *http2Server) getStream(f http2.Frame) (*Stream, bool) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	if t.activeStreams == nil {
+		// The transport is closing.
+		return nil, false
+	}
+	s, ok := t.activeStreams[f.Header().StreamID]
+	if !ok {
+		// The stream is already done.
+		return nil, false
+	}
+	return s, true
+}
+
+// updateWindow adjusts the inbound quota for the stream and the transport.
+// Window updates will deliver to the controller for sending when
+// the cumulative quota exceeds the corresponding threshold.
+func (t *http2Server) updateWindow(s *Stream, n uint32) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.state == streamDone {
+		return
+	}
+	if w := t.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{0, w})
+	}
+	if w := s.fc.onRead(n); w > 0 {
+		t.controlBuf.put(&windowUpdate{s.id, w})
+	}
+}
+
+func (t *http2Server) handleData(f *http2.DataFrame) {
+	size := len(f.Data())
+	if err := t.fc.onData(uint32(size)); err != nil {
+		grpclog.Printf("transport: http2Server %v", err)
+		t.Close()
+		return
+	}
+	// Select the right stream to dispatch.
+	s, ok := t.getStream(f)
+	if !ok {
+		if w := t.fc.onRead(uint32(size)); w > 0 {
+			t.controlBuf.put(&windowUpdate{0, w})
+		}
+		return
+	}
+	if size > 0 {
+		s.mu.Lock()
+		if s.state == streamDone {
+			s.mu.Unlock()
+			// The stream has been closed. Release the corresponding quota.
+			if w := t.fc.onRead(uint32(size)); w > 0 {
+				t.controlBuf.put(&windowUpdate{0, w})
+			}
+			return
+		}
+		if err := s.fc.onData(uint32(size)); err != nil {
+			s.mu.Unlock()
+			t.closeStream(s)
+			t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
+			return
+		}
+		s.mu.Unlock()
+		// TODO(bradfitz, zhaoq): A copy is required here because there is no
+		// guarantee f.Data() is consumed before the arrival of next frame.
+		// Can this copy be eliminated?
+		data := make([]byte, size)
+		copy(data, f.Data())
+		s.write(recvMsg{data: data})
+	}
+	if f.Header().Flags.Has(http2.FlagDataEndStream) {
+		// Received the end of stream from the client.
+		s.mu.Lock()
+		if s.state != streamDone {
+			if s.state == streamWriteDone {
+				s.state = streamDone
+			} else {
+				s.state = streamReadDone
+			}
+		}
+		s.mu.Unlock()
+		s.write(recvMsg{err: io.EOF})
+	}
+}
+
+func (t *http2Server) handleRSTStream(f *http2.RSTStreamFrame) {
+	s, ok := t.getStream(f)
+	if !ok {
+		return
+	}
+	t.closeStream(s)
+}
+
+func (t *http2Server) handleSettings(f *http2.SettingsFrame) {
+	if f.IsAck() {
+		return
+	}
+	var ss []http2.Setting
+	f.ForeachSetting(func(s http2.Setting) error {
+		ss = append(ss, s)
+		return nil
+	})
+	// The settings will be applied once the ack is sent.
+	t.controlBuf.put(&settings{ack: true, ss: ss})
+}
+
+func (t *http2Server) handlePing(f *http2.PingFrame) {
+	pingAck := &ping{ack: true}
+	copy(pingAck.data[:], f.Data[:])
+	t.controlBuf.put(pingAck)
+}
+
+func (t *http2Server) handleWindowUpdate(f *http2.WindowUpdateFrame) {
+	id := f.Header().StreamID
+	incr := f.Increment
+	if id == 0 {
+		t.sendQuotaPool.add(int(incr))
+		return
+	}
+	if s, ok := t.getStream(f); ok {
+		s.sendQuotaPool.add(int(incr))
+	}
+}
+
+func (t *http2Server) writeHeaders(s *Stream, b *bytes.Buffer, endStream bool) error {
+	first := true
+	endHeaders := false
+	var err error
+	// Sends the headers in a single batch.
+	for !endHeaders {
+		size := t.hBuf.Len()
+		if size > http2MaxFrameLen {
+			size = http2MaxFrameLen
+		} else {
+			endHeaders = true
+		}
+		if first {
+			p := http2.HeadersFrameParam{
+				StreamID:      s.id,
+				BlockFragment: b.Next(size),
+				EndStream:     endStream,
+				EndHeaders:    endHeaders,
+			}
+			err = t.framer.writeHeaders(endHeaders, p)
+			first = false
+		} else {
+			err = t.framer.writeContinuation(endHeaders, s.id, endHeaders, b.Next(size))
+		}
+		if err != nil {
+			t.Close()
+			return ConnectionErrorf("transport: %v", err)
+		}
+	}
+	return nil
+}
+
+// WriteHeader sends the header metedata md back to the client.
+func (t *http2Server) WriteHeader(s *Stream, md metadata.MD) error {
+	s.mu.Lock()
+	if s.headerOk || s.state == streamDone {
+		s.mu.Unlock()
+		return ErrIllegalHeaderWrite
+	}
+	s.headerOk = true
+	s.mu.Unlock()
+	if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
+		return err
+	}
+	t.hBuf.Reset()
+	t.hEnc.WriteField(hpack.HeaderField{Name: ":status", Value: "200"})
+	t.hEnc.WriteField(hpack.HeaderField{Name: "content-type", Value: "application/grpc"})
+	if s.sendCompress != "" {
+		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
+	}
+	for k, v := range md {
+		if isReservedHeader(k) {
+			// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
+			continue
+		}
+		for _, entry := range v {
+			t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
+		}
+	}
+	if err := t.writeHeaders(s, t.hBuf, false); err != nil {
+		return err
+	}
+	t.writableChan <- 0
+	return nil
+}
+
+// WriteStatus sends stream status to the client and terminates the stream.
+// There is no further I/O operations being able to perform on this stream.
+// TODO(zhaoq): Now it indicates the end of entire stream. Revisit if early
+// OK is adopted.
+func (t *http2Server) WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error {
+	var headersSent bool
+	s.mu.Lock()
+	if s.state == streamDone {
+		s.mu.Unlock()
+		return nil
+	}
+	if s.headerOk {
+		headersSent = true
+	}
+	s.mu.Unlock()
+	if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
+		return err
+	}
+	t.hBuf.Reset()
+	if !headersSent {
+		t.hEnc.WriteField(hpack.HeaderField{Name: ":status", Value: "200"})
+		t.hEnc.WriteField(hpack.HeaderField{Name: "content-type", Value: "application/grpc"})
+	}
+	t.hEnc.WriteField(
+		hpack.HeaderField{
+			Name:  "grpc-status",
+			Value: strconv.Itoa(int(statusCode)),
+		})
+	t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-message", Value: statusDesc})
+	// Attach the trailer metadata.
+	for k, v := range s.trailer {
+		// Clients don't tolerate reading restricted headers after some non restricted ones were sent.
+		if isReservedHeader(k) {
+			continue
+		}
+		for _, entry := range v {
+			t.hEnc.WriteField(hpack.HeaderField{Name: k, Value: entry})
+		}
+	}
+	if err := t.writeHeaders(s, t.hBuf, true); err != nil {
+		t.Close()
+		return err
+	}
+	t.closeStream(s)
+	t.writableChan <- 0
+	return nil
+}
+
+// Write converts the data into HTTP2 data frame and sends it out. Non-nil error
+// is returns if it fails (e.g., framing error, transport error).
+func (t *http2Server) Write(s *Stream, data []byte, opts *Options) error {
+	// TODO(zhaoq): Support multi-writers for a single stream.
+	var writeHeaderFrame bool
+	s.mu.Lock()
+	if s.state == streamDone {
+		s.mu.Unlock()
+		return StreamErrorf(codes.Unknown, "the stream has been done")
+	}
+	if !s.headerOk {
+		writeHeaderFrame = true
+		s.headerOk = true
+	}
+	s.mu.Unlock()
+	if writeHeaderFrame {
+		if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
+			return err
+		}
+		t.hBuf.Reset()
+		t.hEnc.WriteField(hpack.HeaderField{Name: ":status", Value: "200"})
+		t.hEnc.WriteField(hpack.HeaderField{Name: "content-type", Value: "application/grpc"})
+		if s.sendCompress != "" {
+			t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
+		}
+		p := http2.HeadersFrameParam{
+			StreamID:      s.id,
+			BlockFragment: t.hBuf.Bytes(),
+			EndHeaders:    true,
+		}
+		if err := t.framer.writeHeaders(false, p); err != nil {
+			t.Close()
+			return ConnectionErrorf("transport: %v", err)
+		}
+		t.writableChan <- 0
+	}
+	r := bytes.NewBuffer(data)
+	for {
+		if r.Len() == 0 {
+			return nil
+		}
+		size := http2MaxFrameLen
+		s.sendQuotaPool.add(0)
+		// Wait until the stream has some quota to send the data.
+		sq, err := wait(s.ctx, t.shutdownChan, s.sendQuotaPool.acquire())
+		if err != nil {
+			return err
+		}
+		t.sendQuotaPool.add(0)
+		// Wait until the transport has some quota to send the data.
+		tq, err := wait(s.ctx, t.shutdownChan, t.sendQuotaPool.acquire())
+		if err != nil {
+			if _, ok := err.(StreamError); ok {
+				t.sendQuotaPool.cancel()
+			}
+			return err
+		}
+		if sq < size {
+			size = sq
+		}
+		if tq < size {
+			size = tq
+		}
+		p := r.Next(size)
+		ps := len(p)
+		if ps < sq {
+			// Overbooked stream quota. Return it back.
+			s.sendQuotaPool.add(sq - ps)
+		}
+		if ps < tq {
+			// Overbooked transport quota. Return it back.
+			t.sendQuotaPool.add(tq - ps)
+		}
+		t.framer.adjustNumWriters(1)
+		// Got some quota. Try to acquire writing privilege on the
+		// transport.
+		if _, err := wait(s.ctx, t.shutdownChan, t.writableChan); err != nil {
+			if _, ok := err.(StreamError); ok {
+				// Return the connection quota back.
+				t.sendQuotaPool.add(ps)
+			}
+			if t.framer.adjustNumWriters(-1) == 0 {
+				// This writer is the last one in this batch and has the
+				// responsibility to flush the buffered frames. It queues
+				// a flush request to controlBuf instead of flushing directly
+				// in order to avoid the race with other writing or flushing.
+				t.controlBuf.put(&flushIO{})
+			}
+			return err
+		}
+		select {
+		case <-s.ctx.Done():
+			t.sendQuotaPool.add(ps)
+			if t.framer.adjustNumWriters(-1) == 0 {
+				t.controlBuf.put(&flushIO{})
+			}
+			t.writableChan <- 0
+			return ContextErr(s.ctx.Err())
+		default:
+		}
+		var forceFlush bool
+		if r.Len() == 0 && t.framer.adjustNumWriters(0) == 1 && !opts.Last {
+			forceFlush = true
+		}
+		if err := t.framer.writeData(forceFlush, s.id, false, p); err != nil {
+			t.Close()
+			return ConnectionErrorf("transport: %v", err)
+		}
+		if t.framer.adjustNumWriters(-1) == 0 {
+			t.framer.flushWrite()
+		}
+		t.writableChan <- 0
+	}
+
+}
+
+func (t *http2Server) applySettings(ss []http2.Setting) {
+	for _, s := range ss {
+		if s.ID == http2.SettingInitialWindowSize {
+			t.mu.Lock()
+			defer t.mu.Unlock()
+			for _, stream := range t.activeStreams {
+				stream.sendQuotaPool.reset(int(s.Val - t.streamSendQuota))
+			}
+			t.streamSendQuota = s.Val
+		}
+
+	}
+}
+
+// controller running in a separate goroutine takes charge of sending control
+// frames (e.g., window update, reset stream, setting, etc.) to the server.
+func (t *http2Server) controller() {
+	for {
+		select {
+		case i := <-t.controlBuf.get():
+			t.controlBuf.load()
+			select {
+			case <-t.writableChan:
+				switch i := i.(type) {
+				case *windowUpdate:
+					t.framer.writeWindowUpdate(true, i.streamID, i.increment)
+				case *settings:
+					if i.ack {
+						t.framer.writeSettingsAck(true)
+						t.applySettings(i.ss)
+					} else {
+						t.framer.writeSettings(true, i.ss...)
+					}
+				case *resetStream:
+					t.framer.writeRSTStream(true, i.streamID, i.code)
+				case *flushIO:
+					t.framer.flushWrite()
+				case *ping:
+					t.framer.writePing(true, i.ack, i.data)
+				default:
+					grpclog.Printf("transport: http2Server.controller got unexpected item type %v\n", i)
+				}
+				t.writableChan <- 0
+				continue
+			case <-t.shutdownChan:
+				return
+			}
+		case <-t.shutdownChan:
+			return
+		}
+	}
+}
+
+// Close starts shutting down the http2Server transport.
+// TODO(zhaoq): Now the destruction is not blocked on any pending streams. This
+// could cause some resource issue. Revisit this later.
+func (t *http2Server) Close() (err error) {
+	t.mu.Lock()
+	if t.state == closing {
+		t.mu.Unlock()
+		return errors.New("transport: Close() was already called")
+	}
+	t.state = closing
+	streams := t.activeStreams
+	t.activeStreams = nil
+	t.mu.Unlock()
+	close(t.shutdownChan)
+	err = t.conn.Close()
+	// Cancel all active streams.
+	for _, s := range streams {
+		s.cancel()
+	}
+	return
+}
+
+// closeStream clears the footprint of a stream when the stream is not needed
+// any more.
+func (t *http2Server) closeStream(s *Stream) {
+	t.mu.Lock()
+	delete(t.activeStreams, s.id)
+	t.mu.Unlock()
+	// In case stream sending and receiving are invoked in separate
+	// goroutines (e.g., bi-directional streaming), cancel needs to be
+	// called to interrupt the potential blocking on other goroutines.
+	s.cancel()
+	s.mu.Lock()
+	if q := s.fc.resetPendingData(); q > 0 {
+		if w := t.fc.onRead(q); w > 0 {
+			t.controlBuf.put(&windowUpdate{0, w})
+		}
+	}
+	if s.state == streamDone {
+		s.mu.Unlock()
+		return
+	}
+	s.state = streamDone
+	s.mu.Unlock()
+}
+
+func (t *http2Server) RemoteAddr() net.Addr {
+	return t.conn.RemoteAddr()
+}
diff --git a/vendor/google.golang.org/grpc/transport/http_util.go b/vendor/google.golang.org/grpc/transport/http_util.go
new file mode 100644
index 0000000..a4b1b07
--- /dev/null
+++ b/vendor/google.golang.org/grpc/transport/http_util.go
@@ -0,0 +1,422 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package transport
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"net"
+	"strconv"
+	"strings"
+	"sync/atomic"
+	"time"
+
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/hpack"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+)
+
+const (
+	// The primary user agent
+	primaryUA = "grpc-go/0.11"
+	// http2MaxFrameLen specifies the max length of a HTTP2 frame.
+	http2MaxFrameLen = 16384 // 16KB frame
+	// http://http2.github.io/http2-spec/#SettingValues
+	http2InitHeaderTableSize = 4096
+	// http2IOBufSize specifies the buffer size for sending frames.
+	http2IOBufSize = 32 * 1024
+)
+
+var (
+	clientPreface   = []byte(http2.ClientPreface)
+	http2ErrConvTab = map[http2.ErrCode]codes.Code{
+		http2.ErrCodeNo:                 codes.Internal,
+		http2.ErrCodeProtocol:           codes.Internal,
+		http2.ErrCodeInternal:           codes.Internal,
+		http2.ErrCodeFlowControl:        codes.ResourceExhausted,
+		http2.ErrCodeSettingsTimeout:    codes.Internal,
+		http2.ErrCodeStreamClosed:       codes.Internal,
+		http2.ErrCodeFrameSize:          codes.Internal,
+		http2.ErrCodeRefusedStream:      codes.Unavailable,
+		http2.ErrCodeCancel:             codes.Canceled,
+		http2.ErrCodeCompression:        codes.Internal,
+		http2.ErrCodeConnect:            codes.Internal,
+		http2.ErrCodeEnhanceYourCalm:    codes.ResourceExhausted,
+		http2.ErrCodeInadequateSecurity: codes.PermissionDenied,
+		http2.ErrCodeHTTP11Required:     codes.FailedPrecondition,
+	}
+	statusCodeConvTab = map[codes.Code]http2.ErrCode{
+		codes.Internal:          http2.ErrCodeInternal,
+		codes.Canceled:          http2.ErrCodeCancel,
+		codes.Unavailable:       http2.ErrCodeRefusedStream,
+		codes.ResourceExhausted: http2.ErrCodeEnhanceYourCalm,
+		codes.PermissionDenied:  http2.ErrCodeInadequateSecurity,
+	}
+)
+
+// Records the states during HPACK decoding. Must be reset once the
+// decoding of the entire headers are finished.
+type decodeState struct {
+	err error // first error encountered decoding
+
+	encoding string
+	// statusCode caches the stream status received from the trailer
+	// the server sent. Client side only.
+	statusCode codes.Code
+	statusDesc string
+	// Server side only fields.
+	timeoutSet bool
+	timeout    time.Duration
+	method     string
+	// key-value metadata map from the peer.
+	mdata map[string][]string
+}
+
+// isReservedHeader checks whether hdr belongs to HTTP2 headers
+// reserved by gRPC protocol. Any other headers are classified as the
+// user-specified metadata.
+func isReservedHeader(hdr string) bool {
+	if hdr != "" && hdr[0] == ':' {
+		return true
+	}
+	switch hdr {
+	case "content-type",
+		"grpc-message-type",
+		"grpc-encoding",
+		"grpc-message",
+		"grpc-status",
+		"grpc-timeout",
+		"te":
+		return true
+	default:
+		return false
+	}
+}
+
+// isWhitelistedPseudoHeader checks whether hdr belongs to HTTP2 pseudoheaders
+// that should be propagated into metadata visible to users.
+func isWhitelistedPseudoHeader(hdr string) bool {
+	switch hdr {
+	case ":authority":
+		return true
+	default:
+		return false
+	}
+}
+
+func (d *decodeState) setErr(err error) {
+	if d.err == nil {
+		d.err = err
+	}
+}
+
+func (d *decodeState) processHeaderField(f hpack.HeaderField) {
+	switch f.Name {
+	case "content-type":
+		if !strings.Contains(f.Value, "application/grpc") {
+			d.setErr(StreamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value))
+			return
+		}
+	case "grpc-encoding":
+		d.encoding = f.Value
+	case "grpc-status":
+		code, err := strconv.Atoi(f.Value)
+		if err != nil {
+			d.setErr(StreamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err))
+			return
+		}
+		d.statusCode = codes.Code(code)
+	case "grpc-message":
+		d.statusDesc = f.Value
+	case "grpc-timeout":
+		d.timeoutSet = true
+		var err error
+		d.timeout, err = timeoutDecode(f.Value)
+		if err != nil {
+			d.setErr(StreamErrorf(codes.Internal, "transport: malformed time-out: %v", err))
+			return
+		}
+	case ":path":
+		d.method = f.Value
+	default:
+		if !isReservedHeader(f.Name) || isWhitelistedPseudoHeader(f.Name) {
+			if f.Name == "user-agent" {
+				i := strings.LastIndex(f.Value, " ")
+				if i == -1 {
+					// There is no application user agent string being set.
+					return
+				}
+				// Extract the application user agent string.
+				f.Value = f.Value[:i]
+			}
+			if d.mdata == nil {
+				d.mdata = make(map[string][]string)
+			}
+			k, v, err := metadata.DecodeKeyValue(f.Name, f.Value)
+			if err != nil {
+				grpclog.Printf("Failed to decode (%q, %q): %v", f.Name, f.Value, err)
+				return
+			}
+			d.mdata[k] = append(d.mdata[k], v)
+		}
+	}
+}
+
+type timeoutUnit uint8
+
+const (
+	hour        timeoutUnit = 'H'
+	minute      timeoutUnit = 'M'
+	second      timeoutUnit = 'S'
+	millisecond timeoutUnit = 'm'
+	microsecond timeoutUnit = 'u'
+	nanosecond  timeoutUnit = 'n'
+)
+
+func timeoutUnitToDuration(u timeoutUnit) (d time.Duration, ok bool) {
+	switch u {
+	case hour:
+		return time.Hour, true
+	case minute:
+		return time.Minute, true
+	case second:
+		return time.Second, true
+	case millisecond:
+		return time.Millisecond, true
+	case microsecond:
+		return time.Microsecond, true
+	case nanosecond:
+		return time.Nanosecond, true
+	default:
+	}
+	return
+}
+
+const maxTimeoutValue int64 = 100000000 - 1
+
+// div does integer division and round-up the result. Note that this is
+// equivalent to (d+r-1)/r but has less chance to overflow.
+func div(d, r time.Duration) int64 {
+	if m := d % r; m > 0 {
+		return int64(d/r + 1)
+	}
+	return int64(d / r)
+}
+
+// TODO(zhaoq): It is the simplistic and not bandwidth efficient. Improve it.
+func timeoutEncode(t time.Duration) string {
+	if d := div(t, time.Nanosecond); d <= maxTimeoutValue {
+		return strconv.FormatInt(d, 10) + "n"
+	}
+	if d := div(t, time.Microsecond); d <= maxTimeoutValue {
+		return strconv.FormatInt(d, 10) + "u"
+	}
+	if d := div(t, time.Millisecond); d <= maxTimeoutValue {
+		return strconv.FormatInt(d, 10) + "m"
+	}
+	if d := div(t, time.Second); d <= maxTimeoutValue {
+		return strconv.FormatInt(d, 10) + "S"
+	}
+	if d := div(t, time.Minute); d <= maxTimeoutValue {
+		return strconv.FormatInt(d, 10) + "M"
+	}
+	// Note that maxTimeoutValue * time.Hour > MaxInt64.
+	return strconv.FormatInt(div(t, time.Hour), 10) + "H"
+}
+
+func timeoutDecode(s string) (time.Duration, error) {
+	size := len(s)
+	if size < 2 {
+		return 0, fmt.Errorf("transport: timeout string is too short: %q", s)
+	}
+	unit := timeoutUnit(s[size-1])
+	d, ok := timeoutUnitToDuration(unit)
+	if !ok {
+		return 0, fmt.Errorf("transport: timeout unit is not recognized: %q", s)
+	}
+	t, err := strconv.ParseInt(s[:size-1], 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return d * time.Duration(t), nil
+}
+
+type framer struct {
+	numWriters int32
+	reader     io.Reader
+	writer     *bufio.Writer
+	fr         *http2.Framer
+}
+
+func newFramer(conn net.Conn) *framer {
+	f := &framer{
+		reader: bufio.NewReaderSize(conn, http2IOBufSize),
+		writer: bufio.NewWriterSize(conn, http2IOBufSize),
+	}
+	f.fr = http2.NewFramer(f.writer, f.reader)
+	f.fr.ReadMetaHeaders = hpack.NewDecoder(http2InitHeaderTableSize, nil)
+	return f
+}
+
+func (f *framer) adjustNumWriters(i int32) int32 {
+	return atomic.AddInt32(&f.numWriters, i)
+}
+
+// The following writeXXX functions can only be called when the caller gets
+// unblocked from writableChan channel (i.e., owns the privilege to write).
+
+func (f *framer) writeContinuation(forceFlush bool, streamID uint32, endHeaders bool, headerBlockFragment []byte) error {
+	if err := f.fr.WriteContinuation(streamID, endHeaders, headerBlockFragment); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeData(forceFlush bool, streamID uint32, endStream bool, data []byte) error {
+	if err := f.fr.WriteData(streamID, endStream, data); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeGoAway(forceFlush bool, maxStreamID uint32, code http2.ErrCode, debugData []byte) error {
+	if err := f.fr.WriteGoAway(maxStreamID, code, debugData); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeHeaders(forceFlush bool, p http2.HeadersFrameParam) error {
+	if err := f.fr.WriteHeaders(p); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writePing(forceFlush, ack bool, data [8]byte) error {
+	if err := f.fr.WritePing(ack, data); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writePriority(forceFlush bool, streamID uint32, p http2.PriorityParam) error {
+	if err := f.fr.WritePriority(streamID, p); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writePushPromise(forceFlush bool, p http2.PushPromiseParam) error {
+	if err := f.fr.WritePushPromise(p); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeRSTStream(forceFlush bool, streamID uint32, code http2.ErrCode) error {
+	if err := f.fr.WriteRSTStream(streamID, code); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeSettings(forceFlush bool, settings ...http2.Setting) error {
+	if err := f.fr.WriteSettings(settings...); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeSettingsAck(forceFlush bool) error {
+	if err := f.fr.WriteSettingsAck(); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) writeWindowUpdate(forceFlush bool, streamID, incr uint32) error {
+	if err := f.fr.WriteWindowUpdate(streamID, incr); err != nil {
+		return err
+	}
+	if forceFlush {
+		return f.writer.Flush()
+	}
+	return nil
+}
+
+func (f *framer) flushWrite() error {
+	return f.writer.Flush()
+}
+
+func (f *framer) readFrame() (http2.Frame, error) {
+	return f.fr.ReadFrame()
+}
+
+func (f *framer) errorDetail() error {
+	return f.fr.ErrorDetail()
+}
diff --git a/vendor/google.golang.org/grpc/transport/transport.go b/vendor/google.golang.org/grpc/transport/transport.go
new file mode 100644
index 0000000..1c9af54
--- /dev/null
+++ b/vendor/google.golang.org/grpc/transport/transport.go
@@ -0,0 +1,513 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+Package transport defines and implements message oriented communication channel
+to complete various transactions (e.g., an RPC).
+*/
+package transport // import "google.golang.org/grpc/transport"
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"sync"
+	"time"
+
+	"golang.org/x/net/context"
+	"golang.org/x/net/trace"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/metadata"
+)
+
+// recvMsg represents the received msg from the transport. All transport
+// protocol specific info has been removed.
+type recvMsg struct {
+	data []byte
+	// nil: received some data
+	// io.EOF: stream is completed. data is nil.
+	// other non-nil error: transport failure. data is nil.
+	err error
+}
+
+func (*recvMsg) item() {}
+
+// All items in an out of a recvBuffer should be the same type.
+type item interface {
+	item()
+}
+
+// recvBuffer is an unbounded channel of item.
+type recvBuffer struct {
+	c       chan item
+	mu      sync.Mutex
+	backlog []item
+}
+
+func newRecvBuffer() *recvBuffer {
+	b := &recvBuffer{
+		c: make(chan item, 1),
+	}
+	return b
+}
+
+func (b *recvBuffer) put(r item) {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	if len(b.backlog) == 0 {
+		select {
+		case b.c <- r:
+			return
+		default:
+		}
+	}
+	b.backlog = append(b.backlog, r)
+}
+
+func (b *recvBuffer) load() {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	if len(b.backlog) > 0 {
+		select {
+		case b.c <- b.backlog[0]:
+			b.backlog = b.backlog[1:]
+		default:
+		}
+	}
+}
+
+// get returns the channel that receives an item in the buffer.
+//
+// Upon receipt of an item, the caller should call load to send another
+// item onto the channel if there is any.
+func (b *recvBuffer) get() <-chan item {
+	return b.c
+}
+
+// recvBufferReader implements io.Reader interface to read the data from
+// recvBuffer.
+type recvBufferReader struct {
+	ctx  context.Context
+	recv *recvBuffer
+	last *bytes.Reader // Stores the remaining data in the previous calls.
+	err  error
+}
+
+// Read reads the next len(p) bytes from last. If last is drained, it tries to
+// read additional data from recv. It blocks if there no additional data available
+// in recv. If Read returns any non-nil error, it will continue to return that error.
+func (r *recvBufferReader) Read(p []byte) (n int, err error) {
+	if r.err != nil {
+		return 0, r.err
+	}
+	defer func() { r.err = err }()
+	if r.last != nil && r.last.Len() > 0 {
+		// Read remaining data left in last call.
+		return r.last.Read(p)
+	}
+	select {
+	case <-r.ctx.Done():
+		return 0, ContextErr(r.ctx.Err())
+	case i := <-r.recv.get():
+		r.recv.load()
+		m := i.(*recvMsg)
+		if m.err != nil {
+			return 0, m.err
+		}
+		r.last = bytes.NewReader(m.data)
+		return r.last.Read(p)
+	}
+}
+
+type streamState uint8
+
+const (
+	streamActive    streamState = iota
+	streamWriteDone             // EndStream sent
+	streamReadDone              // EndStream received
+	streamDone                  // sendDone and recvDone or RSTStreamFrame is sent or received.
+)
+
+// Stream represents an RPC in the transport layer.
+type Stream struct {
+	id uint32
+	// nil for client side Stream.
+	st ServerTransport
+	// ctx is the associated context of the stream.
+	ctx    context.Context
+	cancel context.CancelFunc
+	// method records the associated RPC method of the stream.
+	method       string
+	recvCompress string
+	sendCompress string
+	buf          *recvBuffer
+	dec          io.Reader
+	fc           *inFlow
+	recvQuota    uint32
+	// The accumulated inbound quota pending for window update.
+	updateQuota uint32
+	// The handler to control the window update procedure for both this
+	// particular stream and the associated transport.
+	windowHandler func(int)
+
+	sendQuotaPool *quotaPool
+	// Close headerChan to indicate the end of reception of header metadata.
+	headerChan chan struct{}
+	// header caches the received header metadata.
+	header metadata.MD
+	// The key-value map of trailer metadata.
+	trailer metadata.MD
+
+	mu sync.RWMutex // guard the following
+	// headerOK becomes true from the first header is about to send.
+	headerOk bool
+	state    streamState
+	// true iff headerChan is closed. Used to avoid closing headerChan
+	// multiple times.
+	headerDone bool
+	// the status received from the server.
+	statusCode codes.Code
+	statusDesc string
+}
+
+// RecvCompress returns the compression algorithm applied to the inbound
+// message. It is empty string if there is no compression applied.
+func (s *Stream) RecvCompress() string {
+	return s.recvCompress
+}
+
+// SetSendCompress sets the compression algorithm to the stream.
+func (s *Stream) SetSendCompress(str string) {
+	s.sendCompress = str
+}
+
+// Header acquires the key-value pairs of header metadata once it
+// is available. It blocks until i) the metadata is ready or ii) there is no
+// header metadata or iii) the stream is cancelled/expired.
+func (s *Stream) Header() (metadata.MD, error) {
+	select {
+	case <-s.ctx.Done():
+		return nil, ContextErr(s.ctx.Err())
+	case <-s.headerChan:
+		return s.header.Copy(), nil
+	}
+}
+
+// Trailer returns the cached trailer metedata. Note that if it is not called
+// after the entire stream is done, it could return an empty MD. Client
+// side only.
+func (s *Stream) Trailer() metadata.MD {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.trailer.Copy()
+}
+
+// ServerTransport returns the underlying ServerTransport for the stream.
+// The client side stream always returns nil.
+func (s *Stream) ServerTransport() ServerTransport {
+	return s.st
+}
+
+// Context returns the context of the stream.
+func (s *Stream) Context() context.Context {
+	return s.ctx
+}
+
+// TraceContext recreates the context of s with a trace.Trace.
+func (s *Stream) TraceContext(tr trace.Trace) {
+	s.ctx = trace.NewContext(s.ctx, tr)
+}
+
+// Method returns the method for the stream.
+func (s *Stream) Method() string {
+	return s.method
+}
+
+// StatusCode returns statusCode received from the server.
+func (s *Stream) StatusCode() codes.Code {
+	return s.statusCode
+}
+
+// StatusDesc returns statusDesc received from the server.
+func (s *Stream) StatusDesc() string {
+	return s.statusDesc
+}
+
+// ErrIllegalTrailerSet indicates that the trailer has already been set or it
+// is too late to do so.
+var ErrIllegalTrailerSet = errors.New("transport: trailer has been set")
+
+// SetTrailer sets the trailer metadata which will be sent with the RPC status
+// by the server. This can only be called at most once. Server side only.
+func (s *Stream) SetTrailer(md metadata.MD) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.trailer != nil {
+		return ErrIllegalTrailerSet
+	}
+	s.trailer = md.Copy()
+	return nil
+}
+
+func (s *Stream) write(m recvMsg) {
+	s.buf.put(&m)
+}
+
+// Read reads all the data available for this Stream from the transport and
+// passes them into the decoder, which converts them into a gRPC message stream.
+// The error is io.EOF when the stream is done or another non-nil error if
+// the stream broke.
+func (s *Stream) Read(p []byte) (n int, err error) {
+	n, err = s.dec.Read(p)
+	if err != nil {
+		return
+	}
+	s.windowHandler(n)
+	return
+}
+
+// The key to save transport.Stream in the context.
+type streamKey struct{}
+
+// newContextWithStream creates a new context from ctx and attaches stream
+// to it.
+func newContextWithStream(ctx context.Context, stream *Stream) context.Context {
+	return context.WithValue(ctx, streamKey{}, stream)
+}
+
+// StreamFromContext returns the stream saved in ctx.
+func StreamFromContext(ctx context.Context) (s *Stream, ok bool) {
+	s, ok = ctx.Value(streamKey{}).(*Stream)
+	return
+}
+
+// state of transport
+type transportState int
+
+const (
+	reachable transportState = iota
+	unreachable
+	closing
+	draining
+)
+
+// NewServerTransport creates a ServerTransport with conn or non-nil error
+// if it fails.
+func NewServerTransport(protocol string, conn net.Conn, maxStreams uint32, authInfo credentials.AuthInfo) (ServerTransport, error) {
+	return newHTTP2Server(conn, maxStreams, authInfo)
+}
+
+// ConnectOptions covers all relevant options for dialing a server.
+type ConnectOptions struct {
+	// UserAgent is the application user agent.
+	UserAgent string
+	// Dialer specifies how to dial a network address.
+	Dialer func(string, time.Duration) (net.Conn, error)
+	// AuthOptions stores the credentials required to setup a client connection and/or issue RPCs.
+	AuthOptions []credentials.Credentials
+	// Timeout specifies the timeout for dialing a client connection.
+	Timeout time.Duration
+}
+
+// NewClientTransport establishes the transport with the required ConnectOptions
+// and returns it to the caller.
+func NewClientTransport(target string, opts *ConnectOptions) (ClientTransport, error) {
+	return newHTTP2Client(target, opts)
+}
+
+// Options provides additional hints and information for message
+// transmission.
+type Options struct {
+	// Last indicates whether this write is the last piece for
+	// this stream.
+	Last bool
+
+	// Delay is a hint to the transport implementation for whether
+	// the data could be buffered for a batching write. The
+	// Transport implementation may ignore the hint.
+	Delay bool
+}
+
+// CallHdr carries the information of a particular RPC.
+type CallHdr struct {
+	// Host specifies the peer's host.
+	Host string
+
+	// Method specifies the operation to perform.
+	Method string
+
+	// RecvCompress specifies the compression algorithm applied on
+	// inbound messages.
+	RecvCompress string
+
+	// SendCompress specifies the compression algorithm applied on
+	// outbound message.
+	SendCompress string
+
+	// Flush indicates whether a new stream command should be sent
+	// to the peer without waiting for the first data. This is
+	// only a hint. The transport may modify the flush decision
+	// for performance purposes.
+	Flush bool
+}
+
+// ClientTransport is the common interface for all gRPC client-side transport
+// implementations.
+type ClientTransport interface {
+	// Close tears down this transport. Once it returns, the transport
+	// should not be accessed any more. The caller must make sure this
+	// is called only once.
+	Close() error
+
+	// GracefulClose starts to tear down the transport. It stops accepting
+	// new RPCs and wait the completion of the pending RPCs.
+	GracefulClose() error
+
+	// Write sends the data for the given stream. A nil stream indicates
+	// the write is to be performed on the transport as a whole.
+	Write(s *Stream, data []byte, opts *Options) error
+
+	// NewStream creates a Stream for an RPC.
+	NewStream(ctx context.Context, callHdr *CallHdr) (*Stream, error)
+
+	// CloseStream clears the footprint of a stream when the stream is
+	// not needed any more. The err indicates the error incurred when
+	// CloseStream is called. Must be called when a stream is finished
+	// unless the associated transport is closing.
+	CloseStream(stream *Stream, err error)
+
+	// Error returns a channel that is closed when some I/O error
+	// happens. Typically the caller should have a goroutine to monitor
+	// this in order to take action (e.g., close the current transport
+	// and create a new one) in error case. It should not return nil
+	// once the transport is initiated.
+	Error() <-chan struct{}
+}
+
+// ServerTransport is the common interface for all gRPC server-side transport
+// implementations.
+//
+// Methods may be called concurrently from multiple goroutines, but
+// Write methods for a given Stream will be called serially.
+type ServerTransport interface {
+	// HandleStreams receives incoming streams using the given handler.
+	HandleStreams(func(*Stream))
+
+	// WriteHeader sends the header metadata for the given stream.
+	// WriteHeader may not be called on all streams.
+	WriteHeader(s *Stream, md metadata.MD) error
+
+	// Write sends the data for the given stream.
+	// Write may not be called on all streams.
+	Write(s *Stream, data []byte, opts *Options) error
+
+	// WriteStatus sends the status of a stream to the client.
+	// WriteStatus is the final call made on a stream and always
+	// occurs.
+	WriteStatus(s *Stream, statusCode codes.Code, statusDesc string) error
+
+	// Close tears down the transport. Once it is called, the transport
+	// should not be accessed any more. All the pending streams and their
+	// handlers will be terminated asynchronously.
+	Close() error
+
+	// RemoteAddr returns the remote network address.
+	RemoteAddr() net.Addr
+}
+
+// StreamErrorf creates an StreamError with the specified error code and description.
+func StreamErrorf(c codes.Code, format string, a ...interface{}) StreamError {
+	return StreamError{
+		Code: c,
+		Desc: fmt.Sprintf(format, a...),
+	}
+}
+
+// ConnectionErrorf creates an ConnectionError with the specified error description.
+func ConnectionErrorf(format string, a ...interface{}) ConnectionError {
+	return ConnectionError{
+		Desc: fmt.Sprintf(format, a...),
+	}
+}
+
+// ConnectionError is an error that results in the termination of the
+// entire connection and the retry of all the active streams.
+type ConnectionError struct {
+	Desc string
+}
+
+func (e ConnectionError) Error() string {
+	return fmt.Sprintf("connection error: desc = %q", e.Desc)
+}
+
+// Define some common ConnectionErrors.
+var ErrConnClosing = ConnectionError{Desc: "transport is closing"}
+
+// StreamError is an error that only affects one stream within a connection.
+type StreamError struct {
+	Code codes.Code
+	Desc string
+}
+
+func (e StreamError) Error() string {
+	return fmt.Sprintf("stream error: code = %d desc = %q", e.Code, e.Desc)
+}
+
+// ContextErr converts the error from context package into a StreamError.
+func ContextErr(err error) StreamError {
+	switch err {
+	case context.DeadlineExceeded:
+		return StreamErrorf(codes.DeadlineExceeded, "%v", err)
+	case context.Canceled:
+		return StreamErrorf(codes.Canceled, "%v", err)
+	}
+	panic(fmt.Sprintf("Unexpected error from context packet: %v", err))
+}
+
+// wait blocks until it can receive from ctx.Done, closing, or proceed.
+// If it receives from ctx.Done, it returns 0, the StreamError for ctx.Err.
+// If it receives from closing, it returns 0, ErrConnClosing.
+// If it receives from proceed, it returns the received integer, nil.
+func wait(ctx context.Context, closing <-chan struct{}, proceed <-chan int) (int, error) {
+	select {
+	case <-ctx.Done():
+		return 0, ContextErr(ctx.Err())
+	case <-closing:
+		return 0, ErrConnClosing
+	case i := <-proceed:
+		return i, nil
+	}
+}