      *  DSMessageStore header by the store implementation. 
      *
      *  @param msg The message to queue. 
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion BlazeDS 4
+     *  @productversion LCDS 3 
      */
     mx_internal function addMessage(msg:IMessage):void {}
     

     *  A developer must set this property to a unique value for the 
     *  application.
     *  A value of <code>null</code> or empty string is considered unset. 
     */  
    public function get cacheID():String
    {

     *  @throws IllegalOperationError if the <code>cacheID</code> property is 
     *  invalid.
     *  @see mx.messaging.MessageStore#cacheID
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion BlazeDS 4
     *  @productversion LCDS 3 
     */
    public function loadCache():AsyncToken
    {
