diff --git a/google/cloud/bigquery_v2/proto/encryption_config_pb2.py b/google/cloud/bigquery_v2/proto/encryption_config_pb2.py
index 5147743b6..5ae21ea6f 100644
--- a/google/cloud/bigquery_v2/proto/encryption_config_pb2.py
+++ b/google/cloud/bigquery_v2/proto/encryption_config_pb2.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/cloud/bigquery_v2/proto/encryption_config.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/google/cloud/bigquery_v2/proto/model_pb2.py b/google/cloud/bigquery_v2/proto/model_pb2.py
index f485c4568..7b66be8f7 100644
--- a/google/cloud/bigquery_v2/proto/model_pb2.py
+++ b/google/cloud/bigquery_v2/proto/model_pb2.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/cloud/bigquery_v2/proto/model.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/google/cloud/bigquery_v2/proto/model_reference_pb2.py b/google/cloud/bigquery_v2/proto/model_reference_pb2.py
index 07d7e4c4b..2411c4863 100644
--- a/google/cloud/bigquery_v2/proto/model_reference_pb2.py
+++ b/google/cloud/bigquery_v2/proto/model_reference_pb2.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/cloud/bigquery_v2/proto/model_reference.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/google/cloud/bigquery_v2/proto/standard_sql_pb2.py b/google/cloud/bigquery_v2/proto/standard_sql_pb2.py
index 15f6715a2..bfe77f934 100644
--- a/google/cloud/bigquery_v2/proto/standard_sql_pb2.py
+++ b/google/cloud/bigquery_v2/proto/standard_sql_pb2.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/cloud/bigquery_v2/proto/standard_sql.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 e786fb364..7fdc4fb28 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -11,8 +11,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "868615a5c1c1059c636bb3d82a555edb1d5a251e",
-        "internalRef": "324294521"
+        "sha": "0dc0a6c0f1a9f979bc0690f0caa5fbafa3000c2c",
+        "internalRef": "327026955"
       }
     },
     {