docs: def get_config_file():
      # type: () -> AnyStr
      """Get model configuration file name from argv"""
      parser = argparse.ArgumentParser(description="Read configuration file.")
      parser.add_argument('-ini', help="Full path of configuration file")
      args = parser.parse_args()
      ini_file = args.ini
      if not FileClass.is_file_exists(ini_file):
          print("Usage: -ini <full path to the configuration file.>")
          exit(-1)
      return ini_file