code: function PopulateInDecorator(cache, config) {
    BaseDecorator.call(this, cache, config, joi.object().keys({
      populateIn: joi.number().integer().min(500).required(),
      populateInAttempts: joi.number().integer().default(5),
      pausePopulateIn: joi.number().integer().required(),
      accessedAtThrottle: joi.number().integer().default(1000)
    }));
  
    this._store = this._getStore();
    this._timer = this._store.createTimer();
    this._timer.on('error', this._emitError);
    this._timer.on('timeout', this._onTimeout.bind(this));
  
    this.on('set:after', this.setTimeout.bind(this));
    this.on('get:after', throttle(this.setAccessedAt.bind(this),
      this._config.accessedAtThrottle));
  }
docs: Auto-populating Redis-backed cache
  
  @constructor
  @param {Cache} cache
  @param {Object} [config]
  @param {String} [config.populateIn]
  @param {String} [config.populateInAttempts]
  @param {String} [config.pausePopulateIn]
  @param {String} [config.accessedAtThrottle]