def groups_option(f):
    new_func = click.option("-g", "--groups",
                            help="Comma-separated list of requirement groups "
                            "to include.")(f)
    return update_wrapper(new_func, f)
def test_ccode_Piecewise_deep():
    p = ccode(2*Piecewise((x, x < 1), (x**2, True)))
    s = \