docs: function (str, highlight) {
                  if (ariaUtilsType.isString(str) && highlight.length) {
                      var beginning = ariaUtilsString.stripAccents(str.substring(0, highlight.length)).toLowerCase();
                      highlight = highlight.toLowerCase();
                      if (beginning === highlight) {
                          return "<strong>" + ariaUtilsString.escapeForHTML(str.substring(0, highlight.length)) + "</strong>"
                                  + ariaUtilsString.escapeForHTML(str.substring(highlight.length));
                      }
                  }
                  return str ? ariaUtilsString.escapeForHTML(str) : str;
              }