def METHOD_NAME(self):
    power_2 = np.array([[0, 0], [1, 0], [0, 1], [2, 0], [1, 1], [0, 2]])
    power_3 = np.array(
        [
            [0, 0],
            [1, 0],
            [0, 1],
            [2, 0],
            [1, 1],
            [0, 2],
            [3, 0],
            [2, 1],
            [1, 2],
            [0, 3],
        ]
    )
    power_2_sort = np.array([[2, 0], [0, 2], [1, 1], [1, 0], [0, 1], [0, 0]])
    power_3_sort = np.array(
        [
            [3, 0],
            [0, 3],
            [2, 1],
            [1, 2],
            [2, 0],
            [0, 2],
            [1, 1],
            [1, 0],
            [0, 1],
            [0, 0],
        ]
    )
    ind_2 = powers_arange(power_2)
    ind_3 = powers_arange(power_3)
    assert (power_2[ind_2] == power_2_sort).all()
    assert (power_3[ind_3] == power_3_sort).all()