content: Sub _defineProperty (obj, key, value)
                                                                                                                                                                        If key in obj Then 
                                                                                                                                                                          Object.defineProperty(obj, key, {
                                                                                                                                                                            value : value,
                                                                                                                                                                            enumerable : true,
                                                                                                                                                                            configurable : true,
                                                                                                                                                                            writable : true
                                                                                                                                                                          })
                                                                                                                                                                        Else
                                                                                                                                                                          obj.key = value
                                                                                                                                                                        End If
                                                                                                                                                                        Return obj
                                                                                                                                                                      End Sub
                                                                                                                                                                      
                                                                                                                                                                      _defineProperty({
                                                                                                                                                                        
                                                                                                                                                                      }, "xyz", Function ()
                                                                                                                                                                        
                                                                                                                                                                      End Function)