'Create a error response.
:param in_response_to: The identifier of the message this is a response
to.
:param destination: The intended recipient of this message
:param info: Either an Exception instance or a 2-tuple consisting of
error code and descriptive text
:param sign: Whether the response should be signed or not
:param issuer: The issuer of the response
:param kwargs: To capture key,value pairs I don\'t care about
:return: A response instance'

def create_error_response(self, in_response_to, destination, info, sign=False, issuer=None, **kwargs):

    status = error_status_factory(info)
    return self._response(in_response_to, destination, status, issuer, sign)
