How to use the proselint.checks.dates_times.am_pm.check_lowercase_periods function in proselint

def test_smoke_check_lowercase_periods(self):
        """Basic smoke test.

        This is for the function
        dates_times.am_pm.check_lowercase_periods.

        """
        assert chk.check_lowercase_periods(
            "Basic smoke phrase without issues.") == []
        assert chk.check_lowercase_periods(
            "It happened at 7 a.m.") == []
        assert chk.check_lowercase_periods(
            "It happened at 7 am.") != []

def test_smoke_check_lowercase_periods(self):
        """Basic smoke test.

        This is for the function
        dates_times.am_pm.check_lowercase_periods.

        """
        assert chk.check_lowercase_periods(
            "Basic smoke phrase without issues.") == []
        assert chk.check_lowercase_periods(
            "It happened at 7 a.m.") == []
        assert chk.check_lowercase_periods(
            "It happened at 7 am.") != []

def test_smoke_check_lowercase_periods(self):
        """Basic smoke test.

        This is for the function
        dates_times.am_pm.check_lowercase_periods.

        """
        assert chk.check_lowercase_periods(
            "Basic smoke phrase without issues.") == []
        assert chk.check_lowercase_periods(
            "It happened at 7 a.m.") == []
        assert chk.check_lowercase_periods(
            "It happened at 7 am.") != []