def METHOD_NAME(self):
    self.set_mode("guide")
    self._load_pyro_samples()
    pyro.sample(
        self._pyro_get_fullname("f"),
        dist.MultivariateNormal(self.f_loc, scale_tril=self.f_scale_tril).to_event(
            self.f_loc.dim() - 1
        ),
    )