def METHOD_NAME(self):
    self.dataset.to_zarr(self.fs.get_mapper("test.zarr"))
    self.assert_io_ok(
        "test.levels",
        num_levels=4,
        agg_methods=None,
        tile_size=256,
        use_saved_levels=False,
        base_dataset_path="test.zarr",
        expected_files=[
            ".zlevels",
            "0.link",
            "1.zarr",
            "2.zarr",
            "3.zarr"
        ],
        expected_num_levels=4,
        expected_tile_size=[256, 256],
        expected_agg_methods={'CHL': 'mean', 'qflags': 'first'},
    )