def METHOD_NAME(self):
    cell_method_strings = [
        "time: variance (interval: 1 hr)",
        "time : variance (interval: 1 hr)",
    ]
    expected = (
        CellMethod(method="variance", coords="time", intervals="1 hr"),
    )
    for cell_method_str in cell_method_strings:
        res = parse_cell_methods(cell_method_str)
        self.assertEqual(res, expected)