docs: function (suggestionNode) {
              if (suggestionNode == null) {
                  suggestionNode = Aria.$window.document.activeElement;
                  if (suggestionNode.className.indexOf("highlight") === -1) {
                      suggestionNode = this._getSuggestionsContainer().children[this.getHighlightedOptionIndex() - 1];
                  }
                  // TODO Get currently focused element and check this is an highlighted option...
              }
  
              if (suggestionNode != null) {
                  this._removeClass(suggestionNode, 'highlight');
                  suggestionNode.firstChild.removeAttribute('tabindex');
              }
          }