code: def test_sub_constant_folding(self, device):
      def sub(x):
          return x - torch.zeros(3)
  
      cfn = self.compile_fn(sub)
      expect = sub(3)
      actual = cfn(3)
      self.assertEqual(expect, actual)
  
imports: import contextlib
  import importlib
  import math
  import os
  import sys
  import unittest
  from functools import partial
  import torch
  import torch._custom_ops
  import torch.library
  from torch._dynamo.testing import make_test_cls_with_patches
  from torch.testing._internal.common_device_type import instantiate_device_type_tests, onlyCPU, onlyCUDA
  from torch.testing._internal.common_utils import IS_CI, IS_WINDOWS, parametrize, TEST_WITH_ASAN, TEST_WITH_ROCM, TestCase
  from torch.testing._internal.inductor_utils import HAS_CPU, HAS_CUDA
  from inductor.test_torchinductor import check_model, check_model_cuda, CommonTemplate, copy_tests, TestFailure
label_desc: Use image node_id 26 for calling the TestInductorDynamic obj's underlying member method code with example usage: obj.test_sub_constant_folding(device) and returns: unknown