code: def get_check_point(self, project, logstore, consumer_group, shard=-1):
          
          request = ConsumerGroupGetCheckPointRequest(project, logstore, consumer_group, shard)
          params = request.get_params()
          headers = {}
          resource = "/logstores/" + logstore + "/consumergroups/" + consumer_group
          (resp, header) = self._send("GET", project, None, resource, params, headers)
          return ConsumerGroupCheckPointResponse(resp, header)
docs: Get check point
  
          :type project: string
          :param project: project name
  
          :type logstore: string
          :param logstore: logstore name
  
          :type consumer_group: string
          :param consumer_group: consumer group name
  
          :type shard: int
          :param shard: shard id
  
          :return: ConsumerGroupCheckPointResponse