Method async_fn

tests/test_middleware.py:1279–1280

(request: APIRequest, call_next: AsyncCallNext)

    def test_construction_rejects_async_function(self) -> None:
        async def async_fn(request: APIRequest, call_next: AsyncCallNext) -> Any:
            return await call_next(request)

        with pytest.raises(TypeError, match="is an async function"):
            make_sync_client(middleware=[async_fn])