      *  underlying data.</p>
      *
      *  @param items Array of items to sort.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public function sort(items:Array):void
     {

     * If the sort does not have any sort fields nor a custom comparator
     * just use an empty SortField object and have it use its default
     * logic.
     */
    private function noFieldsCompare(a:Object, b:Object, fields:Array = null):int
    {

     *  sort field values.
     *
     *  @default false
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    public function get unique():Boolean
    {
