class_docstr: Implementation of Config class for model configure.
  
  Args:
      config_file(str): configure filename, which is a yaml file.
      isCreate(bool): if true, create some neccessary directories to save models, log file and other outputs.
      isSave(bool): if true, save config_file in order to record the configure message.
docstr: Build directory
docstr_tok: ["Build","directory"]
code: def make_dir(self, path):
      """Build directory"""
      if not os.path.exists(path):
          os.makedirs(path)
  
file_path: PGL/legacy/examples/GATNE/utils.py
imports: import datetime
  import os
  import yaml
  import random
  import shutil
label_desc: Use image node_id 5 for calling the Config obj's underlying member method code with example usage: obj.make_dir(path) without return types