docs: function (indices) {
              if (indices == null) {
                  indices = this.getHighlight();
              } else if (!ariaUtilsType.isArray(indices)) {
                  indices = [indices];
              }
  
              var suggestionContainer = this._getSuggestionsContainer();
              for (var k = 0; k < indices.length; k++) {
                  var suggestionNode = suggestionContainer.children[indices[k] - 1];
                  if (suggestionNode) {
                      this.unhighlightOption(suggestionNode);
                  }
              }
          }