if self.auto_error:
                raise self.make_not_authenticated_error()
            else:
                return None
        return authorization


class OAuth2PasswordBearer(OAuth2):
    """
    OAuth2 flow for authentication using a bearer token obtained with a password.
    An instance of it would be used as a dependency.

    Read more about it in the

### Refactors

* ✨ Add `refreshUrl` parameter in `OAuth2PasswordBearer`. PR [#11460](https://github.com/fastapi/fastapi/pull/11460) by [@snosratiershad](https://github.com/snosratiershad).