      * object to calculate the values through its increment() and decrement()
      * functions. If no interpolator is set, then it will use NumberInterpolator
      * by default.</p>
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function get valueBy():Object
     {

     * getting the value from the target property directly or calculating
     * it if the other value is valid and there is also a valid <code>valueBy</code>
     * value supplied.</p>
     */
    public function get valueFrom():Object
    {

     * getting the value from the target property directly or calculating
     * it if the other value is valid and there is also a valid <code>valueBy</code>
     * value supplied.</p>
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function get valueTo():Object
    {
