def METHOD_NAME(k, v):
    if (
        not isinstance(v, zarr.Array)
        or v.shape == ()
        or any(k.endswith(x) for x in ("data", "indices", "indptr"))
    ):
        return
    if re.match(r"obs[mp]?/\w+", k):
        assert v.chunks[0] == 13
    elif re.match(r"var[mp]?/\w+", k):
        assert v.chunks[0] == 42