1 files changed, 8 insertions, 0 deletions
diff --git a/tools/typings/merge-stream.d.ts b/tools/typings/merge-stream.d.ts
new file mode 100644
index 0000000..7425d35
--- /dev/null
+++ b/tools/typings/merge-stream.d.ts
@@ -0,0 +1,8 @@
+declare module 'merge-stream' {
+  function mergeStream(...streams: NodeJS.ReadWriteStream[]): MergeStream;
+  interface MergeStream extends NodeJS.ReadWriteStream {
+    add(stream: NodeJS.ReadWriteStream): MergeStream;
+  }
+  module mergeStream {}
+  export = mergeStream;
+}
+\ No newline at end of file