code: def valid_config(config):
      """validation config"""
      del config
      return True
  
file_path: delta/delta/utils/config.py
imports: from typing import List, Union
  import os
  import json
  import time
  from shutil import copyfile, SameFileError
  from pathlib import Path
  import yaml
  from absl import logging
label_desc: Use image node_id 1 for calling a global function with example usage: valid_config(config) and returns: True