Implemented for Internal and External classes. Not implemented for System classes.
Syntax:
classref objref.PARENT
classref classref.PARENT
classref PARENT (Within user-defined method, same as THIS.PARENT)
The niladic system method PARENT returns a reference to the parent class of either an object, or a class. The result is always a class reference, or the Null object if there is no parent. It is a synonym for BASE.