Refactor basis PR comments

Siddhant Agarwal · Siddhant Agarwal · commit 4fc07286460a · 2021-05-12T18:03:56.000+05:30
diff --git a/stream_chat/base/client.py b/stream_chat/base/client.py
@@ -419,7 +419,7 @@ def list_roles(self):
     @abc.abstractmethod
     def revoke_tokens(self, since):
         """
-        Revoke tokens for a application issued since
+        Revoke tokens for an application issued since
         """
         pass
 
