def METHOD_NAME(vineyard_client):
    df1 = pd.DataFrame(
        [[1, 3, 3], [4, 2, 6], [7, 8, 9]],
        index=['a1', 'a2', 'a3'],
        columns=['x', 'y', 'z'],
    )
    expected = df1.set_index('y', drop=True)
    object_id = vineyard_client.put(expected)
    pd.testing.assert_frame_equal(expected, vineyard_client.get(object_id))