Goods.BasicMetaobject.notifyOnModification Function
Enable or disable notification on receving invalidation messages from the server for this object. If enable, set NOTIFY flag on the object and remove from cache (?). Else unset the flag and insert into cache, if not accessed.

Default void notifyOnModification (Goods.ObjectHeader, bool)
  Type Name Description  
    ObjectHeader obj a ObjectHeader to make the notification changes for  
    bool enabled a boolean, whether notifications are used for this object  
  Return Description  
    void