diff --git a/src/index.js b/src/index.js
index <HASH>..<HASH> 100644
--- a/src/index.js
+++ b/src/index.js
@@ -27,6 +27,15 @@
 /**
  * @namespace google.cloud.tasks.v2beta3
  */
+/**
+ * @namespace google.protobuf
+ */
+/**
+ * @namespace google.rpc
+ */
+/**
+ * @namespace google.type
+ */
 
 'use strict';
add namespace to fix some <I>s in doc (#<I>)