code: def delete_response(self, publisher_name, extension_name, question_id, response_id):
          
          route_values = {}
          if publisher_name is not None:
              route_values['publisherName'] = self._serialize.url('publisher_name', publisher_name, 'str')
          if extension_name is not None:
              route_values['extensionName'] = self._serialize.url('extension_name', extension_name, 'str')
          if question_id is not None:
              route_values['questionId'] = self._serialize.url('question_id', question_id, 'long')
          if response_id is not None:
              route_values['responseId'] = self._serialize.url('response_id', response_id, 'long')
          self._send(http_method='DELETE',
                     location_id='7f8ae5e0-46b0-438f-b2e8-13e8513517bd',
                     version='5.1-preview.1',
                     route_values=route_values)
docs: DeleteResponse.
          [Preview API] Deletes a response for an extension. (soft delete)
          :param str publisher_name: Name of the publisher who published the extension.
          :param str extension_name: Name of the extension.
          :param long question_id: Identifies the question whose response is to be deleted.
          :param long response_id: Identifies the response to be deleted.