Add missing explicit reexport for OAuth, Webhook, WebhookSignature (#…

…1157)

This is required for mypy to recognize these as exported with
--no-implicit-reexport (implied by --strict).

https://mypy.readthedocs.io/en/stable/command_line.html#cmdoption-mypy-no-implicit-reexport

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

stripe/__init__.py

@@ -39,10 +39,13 @@
 log: Optional[Literal["debug", "info"]] = None
 
 # OAuth
-from stripe._oauth import OAuth
+from stripe._oauth import OAuth as OAuth
 
 # Webhooks
-from stripe._webhook import Webhook, WebhookSignature
+from stripe._webhook import (
+    Webhook as Webhook,
+    WebhookSignature as WebhookSignature,
+)
 
 
 # Sets some basic information about the running application that's sent along