@argcomb(Or(And('a', 'b'), And('c', 'd')))
def f(a: Any=None, b: Any=None, c: Any=None, d: Any=None) -> None:
    ...
@argcomb(Or(And('a', 'b'), And('c', 'd')))
def f(a: Any=None, b: Any=None, c: Any=None, d: Any=None) -> None:
    ...