code: function() {
        _.each(this._models, function(model) {
          var cid = model.get('cid');
  
          model.fetch({
            success: function(model, response, options) {
              if (_.isFunction(model.parseJSON))
                model.parseJSON(response);
            }.bind(model)
          });
        }.bind(this));
      }
docs: Fetch data of every element