I could turn:

    def make_money():
        blockchain_pyramid_scheme()

into:

    @with_jazz_hands
    def make_money():
        blockchain_pyramid_scheme()

or equivalently:

    def make_money(*args, **kwargs):
        with_jazz_hands(make_money_impl, *args, **kwargs)
    
    def make_money_impl():
        blockchain_pyramid_scheme()

Both ways wrap with_jazz_hands around make_money without altering the call sites of make_money.