diff --git a/bigquery/google/cloud/bigquery_v2/types.py b/bigquery/google/cloud/bigquery_v2/types.py
index 43414960e03f..36fc2d6bfbd2 100644
--- a/bigquery/google/cloud/bigquery_v2/types.py
+++ b/bigquery/google/cloud/bigquery_v2/types.py
@@ -34,7 +34,7 @@
 
 names = []
 
-for module in _shared_modules:
+for module in _shared_modules:  # pragma: NO COVER
     for name, message in get_messages(module).items():
         setattr(sys.modules[__name__], name, message)
         names.append(name)
diff --git a/bigquery/synth.metadata b/bigquery/synth.metadata
index 8014f67e980c..3d09d31e5ed8 100644
--- a/bigquery/synth.metadata
+++ b/bigquery/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-05-21T12:12:55.399616Z",
+  "updateTime": "2019-05-25T12:13:19.608155Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.20.0",
-        "dockerImage": "googleapis/artman@sha256:3246adac900f4bdbd62920e80de2e5877380e44036b3feae13667ec255ebf5ec"
+        "version": "0.21.0",
+        "dockerImage": "googleapis/artman@sha256:28d4271586772b275cd3bc95cb46bd227a24d3c9048de45dccdb7f3afb0bfba9"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "32a10f69e2c9ce15bba13ab1ff928bacebb25160",
-        "internalRef": "249058354"
+        "sha": "7ca19138ccebe219a67be2245200e821b3e32123",
+        "internalRef": "249916728"
       }
     }
   ],