code: func (lr *logRegistry) SetLevel(logger, level string) error {
  	lvl, err := logrus.ParseLevel(level)
  	if err != nil {
  		return err
  	}
  	if logger == "default" {
  		lr.defaultLevel = lvl
  		return nil
  	}
  	lr.logLevels[logger] = lvl
  	logVal := lr.getLoggerFromMapping(logger)
  	if logVal != nil {
  		defaultLogger.Debugf("setting logger level: %v -> %v", logVal.GetName(), lvl.String())
  		return setLevel(logVal, lvl)
  	}
  	return nil
  }
docs: // SetLevel modifies log level of selected logger in the registry