Class MethodDescriptorSuper

Lib/test/test_call.py:780–782

                return super().__call__(*args)

        class MethodDescriptorSuper(SuperBase, _testcapi.MethodDescriptorBase):
            def __call__(self, *args):
                return super().__call__(*args)

        calls += [
            (dict.update, ({},), {"key":True}, None),