text: (function (app) {
  
      app.models.Question = app.models.Model.extend({
  
          type: 'app.models.Question',
  
          fields: [
              'id',
              'chapterId',
              'title',
              'variants',
              'correct'
          ],
  
          init: function (data) {
              this._super(data);
          }
  
      });
  
  })(APP);