code: def test_affine_autoregressive(self):
      for stable in [True, False]:
          self._test(partial(T.affine_autoregressive, stable=stable))
  
imports: import operator
  from functools import partial, reduce
  from unittest import TestCase
  import pytest
  import torch
  import pyro.distributions
  import pyro.distributions.transforms
  from pyro.distributions import constraints
  from tests.common import assert_close
label_desc: Use image node_id 8 for calling the TransformTests obj's underlying member method code with example usage: obj.test_affine_autoregressive() without return types