def compute_cgf_from_parents(self, u_lambda):
        l = u_lambda[0]
        g = -l
        return g
Compute :math:`\mathrm{E}_{q(p)}[g(p)]`
dataset/ETHPy150Open bayespy/bayespy/bayespy/inference/vmp/nodes/poisson.py/PoissonDistribution.compute_cgf_from_parents