code: def __call__(
      self, rest_endpoint, experiment_dir, nni_source_dir, **kwargs
  ):
      pass
  
imports: import os.path
  from os import remove
  import subprocess
  import json
  import requests
  from nni.experiment import Experiment
  from nni.tools.nnictl.updater import load_imported_data
  from utils import METRICS_URL, GET_IMPORTED_DATA_URL
label_desc: Use image node_id 1 for calling the ITValidator obj's underlying member method code with example usage: obj.__call__(rest_endpoint, experiment_dir, nni_source_dir) without return types