docs: def merge_request(self, request_id):
          """
          Merge a pull request.
          :param request_id: the id of the request
          :return:
          """
          request_url = "{}pull-request/{}/merge".format(self.create_basic_url(),
                                                         request_id)
  
          return_value = self._call_api(request_url, method='POST')
  
          LOG.debug(return_value)