code: func SetLogLevel(log *logrus.Logger, levelString string) error {
  	level, err := logrus.ParseLevel(levelString)
  
  	if err != nil {
  		return err
  	}
  
  	log.Level = level
  
  	return nil
  }
docs: // SetLogLevel is define log level what you want
  // log level: panic, fatal, error, warn, info and debug