public static void GetObject(AnyReference obj, MethodReturnEventArgs<Zetbox.API.IDataObject> e, Zetbox.API.IZetboxContext ctx)
 {
     if (obj.ObjClass == null)
     {
         e.Result = null;
     }
     else
     {
         var cls = _frozenCtx.FindPersistenceObject<ObjectClass>(obj.ObjClass.Value);
         var ifType = ctx.GetInterfaceType(cls.GetDataType());
         if (obj.ObjGuid != null)
         {
             e.Result = (IDataObject)ctx.FindPersistenceObject(ifType, obj.ObjGuid.Value);
         }
         else
         {
             e.Result = ctx.Find(ifType, obj.ObjID.Value);
         }
     }
 }