diff --git a/google/cloud/pubsub_v1/proto/pubsub_pb2.py b/google/cloud/pubsub_v1/proto/pubsub_pb2.py
index 25c5be14b..44dc06898 100644
--- a/google/cloud/pubsub_v1/proto/pubsub_pb2.py
+++ b/google/cloud/pubsub_v1/proto/pubsub_pb2.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/cloud/pubsub_v1/proto/pubsub.proto
-
+"""Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import message as _message
 from google.protobuf import reflection as _reflection
diff --git a/synth.metadata b/synth.metadata
index c4c666dc1..f67fbeec5 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -11,8 +11,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "7157f9552747421572cf1ab3aec1105c05ebd4f9",
-        "internalRef": "317949519"
+        "sha": "b882b8e6bfcd708042ff00f7adc67ce750817dd0",
+        "internalRef": "318028816"
       }
     },
     {