code: def get_instance(self, payload):
          
          return UserInstance(self._version, payload, service_sid=self._solution['service_sid'], )
docs: Build an instance of UserInstance
  
          :param dict payload: Payload response from the API
  
          :returns: twilio.rest.chat.v2.service.user.UserInstance
          :rtype: twilio.rest.chat.v2.service.user.UserInstance