code: def setUp(self):
      super(JitTestCase, self).setUp()
      self.prev_symbolic_shapes_test_enabled = (
          torch._C._jit_symbolic_shapes_test_mode_enabled()
      )
      torch._C._jit_set_symbolic_shapes_test_mode(True)
  
imports: import operator
  import unittest
  from textwrap import dedent
  import torch
  from torch import nn, Tensor
  from torch.testing import FileCheck
  from torch.testing._internal.common_methods_invocations import sample_inputs_cat_concat
  from torch.testing._internal.common_utils import make_tensor
  from torch.testing._internal.jit_utils import JitTestCase, execWrapper
  from typing import List, Any
label_desc: Use image node_id 1 for calling the TestSymbolicShapeAnalysis obj's underlying member method code with example usage: obj.setUp() without return types