code: def _get_config():
      
      conf_file = os.path.join(_get_config_dir(), 'log_config.toml')
      if os.path.exists(conf_file):
          with open(conf_file) as fd:
              raw_config = fd.read()
          log_config = toml.loads(raw_config)
          return log_config
  
      conf_file = os.path.join(_get_config_dir(), 'log_config.yaml')
      if os.path.exists(conf_file):
          with open(conf_file) as fd:
              raw_config = fd.read()
          log_config = yaml.safe_load(raw_config)
          return log_config
  
      return None
docs: Determines if there is a log config in the config directory
         and returns it. If it does not exist, return None.
  
      Returns:
          log_config (dict): The dictionary to pass to logging.config.dictConfig