code: def get_check_point_fixed(self, project, logstore, consumer_group, shard=-1):
          
  
          res = self.get_check_point(project, logstore, consumer_group, shard)
          res.check_checkpoint(self, project, logstore)
  
          return res
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