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 test_impl():
            df = pq.read_table('example.parquet').to_pandas()
            return (df.two.unique() == 'foo').sum()