code: def __call__(self, *args, **kwargs):
      return self.fn(*args, **kwargs)
  
file_path: pyro/tests/poutine/test_properties.py
imports: import pytest
  import torch
  import pyro
  import pyro.distributions
  import pyro.poutine
  from pyro.util import set_rng_seed
  from tests.common import assert_equal
label_desc: Use image node_id 2 for calling the ExampleModel obj's underlying member method code with example usage: obj.__call__() and returns: self