Fix vision samples

Jon Wayne Parrott · Jon Wayne Parrott · commit e2c2e2abf1ad · 2017-02-17T13:35:05.000-08:00
Change-Id: I6b527b2f2d81c9894fa542ead39177aa5f4e4188
diff --git a/vision/api/label/snippets.py b/vision/api/label/snippets.py
@@ -23,7 +23,11 @@
 
 def get_service():
     """Get vision service using discovery."""
-    return googleapiclient.discovery.build('vision', 'v1',)
+    discovery_url = (
+        'https://vision.googleapis.com/$discovery/rest?'
+        'labels=TRUSTED_TESTER&version=v1')
+    return googleapiclient.discovery.build(
+        'vision', 'v1', discoveryServiceUrl=discovery_url)
 
 
 def crop_hint(photo_file):
