def METHOD_NAME(self):
    observed_holidays = (
        "2010-08-16",
        "2011-05-02",
        "2011-12-26",
        "2012-01-02",
        "2015-11-02",
        "2016-05-02",
        "2016-12-26",
        "2017-01-02",
        "2017-11-20",
        "2020-11-02",
        "2021-08-16",
        "2022-05-02",
        "2022-12-26",
        "2023-01-02",
        "2023-11-20",
    )
    self.assertHoliday(observed_holidays)
    self.assertNoNonObservedHoliday(observed_holidays)