Как сделать метод в python?

class MyClass:

    def my_method(self, *args, **kwargs):
        doing_something
        return self


MyClass.my_method # <function __main__.MyClass.my_method(a, b)>
MyClass.my_method(3, 5) # 8

class MyClass(Parent):

    def my_method(self, *args, **kwargs):
        doing_something
        return self


MyClass.my_method # <function __main__.MyClass.my_method(a, b)>
MyClass.my_method(3, 5) # 8