code: def test_generalized_channel_permute(self):
      for shape in [(3, 16, 16), (1, 3, 32, 32), (2, 5, 3, 64, 64)]:
          # NOTE: Without changing the interface to generalized_channel_permute I can't reuse general
          # test for `event_dim > 1` transforms
          transform = T.generalized_channel_permute(channels=shape[-3])
          self._test_shape(shape, transform)
          self._test_inverse(shape, transform)
  
      for width_dim in [2, 4, 6]:
          input_dim = (width_dim**2) * 3
          self._test_jacobian(
              input_dim, Flatten(transform, (3, width_dim, width_dim))
          )
  
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 25 for calling the TransformTests obj's underlying member method code with example usage: obj.test_generalized_channel_permute() without return types