def _stats(self, mu):
        var = mu
        tmp = np.asarray(mu)
        mu_nonzero = tmp > 0
        g1 = _lazywhere(mu_nonzero, (tmp,), lambda x: sqrt(1.0/x), np.inf)
        g2 = _lazywhere(mu_nonzero, (tmp,), lambda x: 1.0/x, np.inf)
        return mu, var, g1, g2
dataset/ETHPy150Open scipy/scipy/scipy/stats/_discrete_distns.py/poisson_gen._stats/original