code: def __init__(self, delimiter="\t"):
      self.meters = defaultdict(SmoothedValue)
      self.delimiter = delimiter
  
imports: import datetime
  import errno
  import os
  import time
  from collections import defaultdict, deque
  import torch
  import torch.distributed
label_desc: Use image node_id 1 to create a new MetricLogger object  with example: obj = MetricLogger(delimiter)