isort: Reformat using isort.

zulip/integrations/google/get-google-credentials

@@ -1,12 +1,10 @@
 #!/usr/bin/env python3
 import os
-
-from oauth2client import client
-from oauth2client import tools
-from oauth2client.file import Storage
-
 from typing import Optional
 
+from oauth2client import client, tools
+from oauth2client.file import Storage
+
 try:
     import argparse
     flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()  # type: Optional[argparse.Namespace]