Cleaned up OAuth 2.0 support fully using Storage() and updating samples.
diff --git a/apiclient/model.py b/apiclient/model.py
index 1f2e1c1..68da13e 100644
--- a/apiclient/model.py
+++ b/apiclient/model.py
@@ -18,6 +18,7 @@
 from anyjson import simplejson
 from errors import HttpError
 
+
 def _abstract():
   raise NotImplementedError('You need to override this function')