docs: function (applicationId, deviceDetails, environment) {
      if(!applicationId) {
          logger.wtf('No applicationID specified');
      }
      
      this.applicationId = applicationId;
      this.deviceDetails = deviceDetails;
      this.environment = environment;
      this._currentAds = [];
      this._loadingAds = [];
      this._adsWithoutImages = [];
  }