docs: function (indices) {
              if (!ariaUtilsType.isArray(indices)) {
                  indices = [indices];
              }
  
              var suggestionsContainer = this._getSuggestionsContainer();
              var latestSuggestionNode;
              for (var k = 0; k < indices.length; k++) {
                  var suggestionNode = suggestionsContainer.children[indices[k] - 1];
                  if (suggestionNode) {
                      latestSuggestionNode = suggestionNode;
                      this._addClass(suggestionNode, 'highlight');
                  }
              }
  
              if (latestSuggestionNode != null) {
                  latestSuggestionNode.firstChild.setAttribute('tabindex', 0);
                  latestSuggestionNode.firstChild.focus();
              }
          }