def METHOD_NAME(self):
    dtype = [("name", "S10"), ("height", float), ("age", int)]
    values = [
        ("Arthur", 1.8, 41),
        ("Lancelot", 1.9, 38),
        ("Galahad", 1.7, 38),
    ]
    a_np = np.array(values, dtype=dtype)
    a_num = num.array(values, dtype=dtype)
    res_np = np.sort(a_np, order="height")
    res_num = num.sort(a_num, order="height")
    assert np.array_equal(res_np, res_num)
    res_np = np.sort(a_np, order=["age", "height"])
    res_num = num.sort(a_num, order=["age", "height"])
    assert np.array_equal(res_np, res_num)