code: def _check_config_exists(config_file=None):
      '''
      Verify the config file is present
      '''
      if config_file is None:
          config_file = _config_file()
      if not os.path.isfile(config_file):
          return False
      return Truf _check_config_exists(config_file=None):
      '''
      Verify the config file is present
      '''
      if config_file is None:
          config_file = _config_file()
      if not os.path.isfile(config_file):
          return False
      return True
docs: Verify the config file is present