Agent using the appropriate HTTP status code.)

        The following is a non-normative example of a UserInfo Error Response:

        .. code-block:: http

            HTTP/1.1 401 Unauthorized
            WWW-Authenticate: Bearer error="invalid_token",
                error_description="The Access Token expired"

        .. _`Section 2`: https://datatracker.ietf.org/doc/html/rfc6750#section-2
        .. _`Section 3`: https://datatracker.ietf.org/doc/html/rfc6750#section-3
        r