code: def make_response(self, data, *args, **kwargs):
          
          default_mediatype = kwargs.pop('fallback_mediatype', None) or self.default_mediatype
          mediatype = request.accept_mimetypes.best_match(
              self.representations,
              default=default_mediatype,
          )
          if mediatype is None:
              raise NotAcceptable()
          if mediatype in self.representations:
              resp = self.representations[mediatype](data, *args, **kwargs)
              resp.headers['Content-Type'] = mediatype
              return resp
          elif mediatype == 'text/plain':
              resp = original_flask_make_response(str(data), *args, **kwargs)
              resp.headers['Content-Type'] = 'text/plain'
              return resp
          else:
              raise InternalServerError()
docs: Looks up the representation transformer for the requested media
          type, invoking the transformer to create a response object. This
          defaults to default_mediatype if no transformer is found for the
          requested mediatype. If default_mediatype is None, a 406 Not
          Acceptable response will be sent as per RFC 2616 section 14.1
  
          :param data: Python object containing response data to be transformed