docs: function Poller(getRequest, options) {
      options = options || { };
      events.EventEmitter.call(this);
      this._pollerOptions = utils.getPollerOptions([utils.setup().poller, options]);
      this._get = getRequest;
      this._params = options.params || { };
      this._lastreadId = this._params.lastreadId || null;
      this._timer = null;
      this._requestPending = false;
      this._paused = false;
      return this;
  }