docs: function (out) {
                  if (this.domType) {
                      // if domType is empty, we do not output anything for the section
                      // (used in the tooltip)
                      var attributeList = this.attributes ? ariaUtilsHtml.buildAttributeList(this.attributes) : '';
                      var h = ['<', this.domType, attributeList, ' id="', this._domId, '" ',
                              ariaUtilsDelegate.getMarkup(this.delegateId), '>'];
                      out.write(h.join(''));// opening the section
                  }
              }