def METHOD_NAME():
    """Test the sitemap timestamp generation."""
    dt = datetime.datetime(2018, 1, 2, 3, 4, 5)
    assert _sitemapdtformat(dt) == '2018-01-02T03:04:05Z'
    dt = datetime.datetime(2018, 11, 12, 13, 14, 15)
    assert _sitemapdtformat(dt) == '2018-11-12T13:14:15Z'