code: def test_subgraph_rewriter_with_trivial_replacement(self):
      class M(torch.nn.Module):
          def forward(self, x):
              val = torch.neg(x)
              val = torch.add(val, val)
              return torch.add(val, val)
  
      def pattern(x):
          return torch.add(x, x)
  
      def replacement(x):
          return x
  
      def comparison(x):
          return torch.neg(x)
  
      traced = symbolic_trace(M())
      comparison_fn = symbolic_trace(comparison)
  
      x = torch.randn(1, 5)
  
      matches = subgraph_rewriter.replace_pattern_with_filters(
          traced, pattern, replacement, []
      )
  
      traced.graph.lint()
  
      ref_output = comparison_fn(x)
      test_output = traced.forward(x)
      no_replacements = (
          len(matches) == 2 and len(matches[1].replacements) == 0
      )
      self.assertEqual(ref_output, test_output)
      self.assertTrue(no_replacements)
  
imports: import os
  import sys
  import torch
  from torch.fx import symbolic_trace, subgraph_rewriter
  from torch.fx.annotate import annotate
  from torch.fx.experimental.rewriter import RewritingTracer
  from torch.testing._internal.jit_utils import JitTestCase
label_desc: Use image node_id 3 for calling the TestSubgraphRewriter obj's underlying member method code with example usage: obj.test_subgraph_rewriter_with_trivial_replacement() and returns: torch, x, torch, torch