      *  
      *  @return The depth of the node, where 0 corresponds to the top level, 
      *  and -1 if the depth cannot be calculated.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     function getNodeDepth(node:Object, iterator:IViewCursor, model:Object = null):int;
 

     *  @return An ICollectionView instance.
     *
     *  @see mx.controls.Tree
     */
    function getHierarchicalCollectionAdaptor(hierarchicalData:ICollectionView, 
                                                uidFunction:Function, 

     *  @return The parent node containing the node as child, 
     *  <code>null</code> for a top-level node,  
     *  and <code>undefined</code> if the parent cannot be determined.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    function getParent(node:Object, collection:ICollectionView, model:Object = null):Object;
}
