code: function (className) {
                  if (this.attributes && this.attributes.classList) {
                      this.attributes.classList = className.split(" ");
                      var attrBinding = this._attributesBinding;
                      if (attrBinding) {
                          this.__json.setValue(attrBinding.inside[attrBinding.to], "classList", className.split(" "), this._attributesChangeListener);
                      }
                  }
              }
docs: Update the section object variables that are linked to the className of the HTML element representing the
  section in the DOM. It does not update the HTML class attribute, but should be called only after it has
  been updated by another entity.
  @param {String} className