code: def test_start4(self):
      def fn(a, b, check):
          if check:
              return a + b + 10
          else:
              return a + b - 10
  
      v1 = torch.randn(10)
      v2 = torch.randn(10)
      f = torch.zeros(1, dtype=torch.int32)
      t = torch.ones(1, dtype=torch.int32)
      correct1 = fn(v1, v2, t)
      correct2 = fn(v1, v2, f)
      cnt = torch._dynamo.testing.CompileCounter()
      opt_fn = torch._dynamo.optimize(cnt)(fn)
      r1 = opt_fn(v1, v2, t)
      r2 = opt_fn(v1, v2, f)
      self.assertTrue(torch._dynamo.testing.same(r1, correct1))
      self.assertTrue(torch._dynamo.testing.same(r2, correct2))
      self.assertEqual(cnt.frame_count, 3)
      self.assertEqual(cnt.op_count, 4)
  
imports: from unittest.mock import patch
  import torch
  import torch._dynamo.test_case
  import torch._dynamo.testing
  from torch._dynamo.testing import unsupported
  from torch._dynamo.utils import ifdynstaticdefault
label_desc: Use image node_id 25 for calling the SubGraphTests obj's underlying member method code with example usage: obj.test_start4() and returns: unknown, unknown