def METHOD_NAME(self):
    # https://calendariohispanohablante.com/2017/calendario-guatemala-2017.html
    dt = (
        "2017-01-01",
        "2017-04-13",
        "2017-04-14",
        "2017-04-15",
        "2017-05-01",
        "2017-06-30",
        "2017-08-15",
        "2017-09-15",
        "2017-10-20",
        "2017-11-01",
        "2017-12-25",
    )
    self.assertHoliday(dt)