keeweb/app/scripts/models/menu/groups-menu-model.js

const MenuSectionModel = require('./menu-section-model');
const GroupCollection = require('../../collections/group-collection');

const GroupsMenuModel = MenuSectionModel.extend({
    defaults: _.extend({}, MenuSectionModel.prototype.defaults, {
        scrollable: true,
        grow: true
    }),

    initialize() {
        this.set('items', new GroupCollection());
    },

    _loadItemCollectionType() {
        return require('../../collections/group-collection');
    }
});

module.exports = GroupsMenuModel;