How to use the freezegun.api.FakeDatetime.max function in freezegun

def utcnow(cls):
        result = cls._time_to_freeze() or real_datetime.utcnow()
        return datetime_to_fakedatetime(result)

    @staticmethod
    def _time_to_freeze():
        if freeze_factories:
            return get_current_time()

    @classmethod
    def _tz_offset(cls):
        return tz_offsets[-1]


FakeDatetime.min = datetime_to_fakedatetime(real_datetime.min)
FakeDatetime.max = datetime_to_fakedatetime(real_datetime.max)


def convert_to_timezone_naive(time_to_freeze):
    """
    Converts a potentially timezone-aware datetime to be a naive UTC datetime
    """
    if time_to_freeze.tzinfo:
        time_to_freeze -= time_to_freeze.utcoffset()
        time_to_freeze = time_to_freeze.replace(tzinfo=None)
    return time_to_freeze


def pickle_fake_date(datetime_):
    # A pickle function for FakeDate
    return FakeDate, (
        datetime_.year,