def __call__(
        self, environ: WSGIEnvironment, start_response: StartResponse
    ) -> t.Iterable[bytes]:
        """Call the exception as WSGI application.

        :param environ: the WSGI environment.
        :param start_response: the response callable provided by the WSGI
                               server.
        """
        response = t.cast("WSGIResponse", self.get_response(environ))
        return response(environ, start_response)
Call the exception as WSGI application.

        :param environ: the WSGI environment.
        :param start_response: the response callable provided by the WSGI
                               server.
        
src/werkzeug/exceptions.py