code: func (s *Storage) Init() error {
  	redisClient = redis.NewClient(&redis.Options{
  		Addr:     s.config.Stat.Redis.Addr,
  		Password: s.config.Stat.Redis.Password,
  		DB:       s.config.Stat.Redis.DB,
  	})
  
  	_, err := redisClient.Ping().Result()
  
  	if err != nil {
  		// redis server error
  		log.Println("Can't connect redis server: " + err.Error())
  
  		return err
  	}
  
  	return nil
  }
docs: // Init client storage.