code: def test_peephole_dynamic(self):
      def f(x, y):
          return x.type_as(y)
  
      fn = torch.jit.script(f)
      s = str(fn.graph)
      torch._C._jit_pass_peephole(fn.graph)
      self.assertEqual(s, str(fn.graph))
  
imports: import torch
  from torch.testing._internal.jit_utils import JitTestCase, RUN_CUDA, _inline_everything
  from torch import nn
  from torch.testing import FileCheck
  from typing import Callable, List
  import unittest
label_desc: Use image node_id 5 for calling the TestPeephole obj's underlying member method code with example usage: obj.test_peephole_dynamic() and returns: x