docs: function(model, options) {
      Backbone.Collection.prototype._addReference.call(this, model, options);
      if (ComponentWidget.isComponent(model) && model.exposedEvents) {
        var events = model.exposedEvents;
        if (events === true) {
          model.model.on('all', this._onModelEvent, this);
        } else if (events.length) {
          for (let i = 0; i < events.length; i++) {
            this.bindExposedEvent(events[i], model);
          }
        }
      }
    }