def METHOD_NAME(self, name: str) -> Optional[date]:
    """
    Add Islamic Republic Day (12th day of the 1st month).
    Iranian Islamic Republic Day is a national and a public holiday in Iran. It marks the day
    that the results of the March 1979 Iranian Islamic Republic referendum were announced.
    https://en.wikipedia.org/wiki/Islamic_Republic_Day
    """
    return self._add_persian_calendar_holiday(
        name, self._persian_calendar.persian_to_gregorian(self._year, 1, 12)
    )