<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _error_serializer(req, exc):
 # pylint: disable=unused-argument """ Serializer for native falcon HTTPError exceptions. We override the default serializer with our own so we can ensure the errors are serialized in a JSON API compliant format. Surprisingly, most falcon error attributes map directly to the JSON API spec. The few that don't can be mapped accordingly: HTTPError JSON API ~~~~~~~~~ ~~~~~~~~ exc.description -> error['detail'] exc.link['href'] -> error['links']['about'] Per the falcon docs this function should return a tuple of (MIMETYPE, BODY PAYLOAD) """


        error = {
            'detail': exc.description,
            'title': exc.title,
            'status': exc.status,
        }

        try:
            error['links'] = {'about': exc.link['href']}
        except (TypeError, KeyError):
            error['links'] = {'about': ''}

        return (
            goldman.config.JSONAPI_MIMETYPE,
            json.dumps({'errors': [error]}),
        )