How to call the method of subclass overwrite in MicroPython?

[Mars-CN]

In the process of extending MicroPython in C, there is a class named ParentClass, which has a member method calledcall , all of which are implemented in the C language.

I have written another MicroPython class that inheritsParentClass:

class ChildClass(ParentClass):
    def child_call(self):
        print("This is a subclass method")

At this point, how to call the child_call method of the subclass in ParentClass? I want to call this method in MicroPython through the following code:

c = ChildClass()
c.call()

At this point, the ParentClass needs to find thechild_call'of the subclass and call it in C.

How should it be implemented?