code: def __init__(self, metric_kwarg_list):
      self.metrics = [
          dnnlib.util.call_func_by_name(**kwargs)
          for kwargs in metric_kwarg_list
      ]
  
imports: import os
  import time
  import hashlib
  import numpy
  import tensorflow
  import dnnlib
  import dnnlib.tflib
  from training import misc
  from training import dataset
label_desc: Use image node_id 1 to create a new MetricGroup object  with example: obj = MetricGroup(metric_kwarg_list)