code: func (l LogLevel) String() string {
  	switch l.Match() {
  	case Critical:
  		return "CRIT"
  	case Error:
  		return "ERR"
  	case Warning:
  		return "WARN"
  	case Notice:
  		return "NOTE"
  	case Info:
  		return "INFO"
  	case Debug:
  		return "DEBUG"
  	case Trace:
  		return "TRACE"
  	default:
  		return "UNSET"
  	}
  }
docs: // String returns the log level name in short form