code: def __init__(self, rank, output="./"):
      self.rank: int = rank
      self.output: str = output
  
imports: import logging
  import os
  import time
  from typing import List
  import oneflow
  from eval import verification
  from utils.utils_logging import AverageMeter
label_desc: Use image node_id 1 to create a new CallBackModelCheckpoint object from inherited base classes: object with example: obj = CallBackModelCheckpoint(rank, output)