def METHOD_NAME(LMS_p: ArrayLike) -> NDArrayFloat:
    """
    Callable applying the reverse non-linearity to the :math:`LMS_p`
    colourspace array.
    """
    return cast(
        NDArrayFloat,
        spow(LMS_p, 1 / 0.427) * np.array([18.36, 21.46, 19435]),
    )