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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def make_response(self, data, *args, **kwargs):
 """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 """

        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()