code: def hide_fn_1(msg):
      return msg["type"] == "sample" and "pois" in msg["name"]
  
imports: from collections import OrderedDict, namedtuple
  import pytest
  import torch
  import pyro
  import pyro.distributions
  import pyro.poutine
  from pyro.infer import SVI, JitTrace_ELBO, Predictive, Trace_ELBO
  from pyro.infer.autoguide import AutoGaussian, AutoGuideList
  from pyro.infer.autoguide.gaussian import AutoGaussianDense, AutoGaussianFunsor, _break_plates
  from pyro.infer.reparam import LocScaleReparam
  from pyro.optim import ClippedAdam
  from tests.common import assert_close, assert_equal, xfail_if_not_implemented
label_desc: Use image node_id 2 for calling the PoissonGuide obj's underlying member method code with example usage: obj.hide_fn_1(msg) and returns: unknown