code: function RedisTransport (opts) {
    this._container = opts.container || 'logs';
    this._length = opts.length || undefined;
    this._client = opts.client || redis.createClient(opts.port, opts.host);
  
    // Authorize cleint
    if (opts.hasOwnProperty('password')) {
      this._client.auth(opts.password);
    }
  
    // Set database index
    if (opts.hasOwnProperty('db')) {
      this._client.select(opts.db);
    }
  }
docs: Create a new RedisTransport instance
  
  @param {Object} opts Transport options object
  @param {String} opts.container Redis key
  @param {Number} opts.length List max length
  @param {Object} opts.client Redis client instance
  @param {String} opts.host Redis host
  @param {Number} opts.port Redis port
  @param {Number} opts.db Redis database index
  @param {String} opts.password Redis password
  
  @constructor