code: def test_find_mismatch_prints_correct_info_when_no_mismatch(self):
      self.maxDiff = None
  
      class Model(torch.nn.Module):
          def forward(self, x):
              return x + 1
  
      f = io.StringIO()
      with contextlib.redirect_stdout(f):
          verification.find_mismatch(
              Model(),
              (torch.randn(2, 3),),
              opset_version=self.opset_version,
              options=verification.VerificationOptions(
                  backend=self.onnx_backend
              ),
          )
      self.assertExpected(f.getvalue())
  
imports: import contextlib
  import io
  import tempfile
  import unittest
  import numpy
  import onnx
  import parameterized
  import pytorch_test_common
  import torch
  from packaging import version
  from torch.onnx import _constants, _experimental, verification
  from torch.testing._internal import common_utils
label_desc: Use image node_id 6 for calling the TestFindMismatch obj's underlying member method code with example usage: obj.test_find_mismatch_prints_correct_info_when_no_mismatch() and returns: unknown