code: func NewLogRegistry() logging.Registry {
  	registry := &logRegistry{
  		loggers:      new(sync.Map),
  		logLevels:    make(map[string]logrus.Level),
  		defaultLevel: initialLogLvl,
  	}
  	// put default logger
  	registry.putLoggerToMapping(defaultLogger)
  	return registry
  }
docs: // NewLogRegistry is a constructor