def _compute_message_to_parent(self, index, m, u_Z):
        if index == 0:
            m0 = np.concatenate([m[0][...,None],
                                 np.zeros(np.shape(m[0]))[...,None]],
                                axis=-1)
            return [m0]
        else:
            raise ValueError("Incorrect parent index")
    

# Make use of the conversion node
Compute the message to a parent.
dataset/ETHPy150Open bayespy/bayespy/bayespy/inference/vmp/nodes/bernoulli.py/CategoricalToBernoulli._compute_message_to_parent