def test_invalid_scalar_index(adata, index):
    # https://github.com/theislab/anndata/issues/619
    with pytest.raises(IndexError, match=r".*index.* out of range\."):
        _ = adata[index]
def _convert_objectGUID(item):
    item = uuid.UUID("{{{0!s}}}".format(item)).bytes_le
    item = escape_bytes(item)
    return item