Summary

Replace assert statements with explicit TypeError raises in @requires decorator (authentication.py) and OpenAPIResponse.render (schemas.py).

assert statements are silently removed when Python runs with the -O (optimize) flag, turning helpful type mismatch messages into cryptic AttributeErrors deeper in the call stack. Using raise TypeError ensures the check always runs regardless of optimization level.

Changed files:

• starlette/authentication.py — 3 places: websocket_wrapper, async_wrapper, sync_wrapper
• starlette/schemas.py — OpenAPIResponse.render

Added tests:

• tests/test_authentication.py — 3 new tests verifying TypeError is raised when sync/async request wrapper and websocket wrapper receive wrong argument types
• tests/test_schemas.py — 1 new test verifying TypeError is raised when OpenAPIResponse receives a non-dict

Checklist

• I understand that this PR may be closed in case there was no previous discussion. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.