code: def setUpClass(cls) -> None:
      # Setup the dynamic shape mode
      cls.old_ssa_mode = torch._C._lazy._get_symbolic_shape_mode()
      torch._C._lazy._set_symbolic_shape_mode(True)
      return super().setUpClass()
  
imports: from typing import Sequence
  import torch
  import functools
  from torch.testing._internal.common_utils import run_tests, TestCase
  from torch.testing._internal.jit_utils import JitTestCase
  from torch.testing._internal.common_methods_invocations import op_db
  from torch.testing._internal.common_device_type import ops, instantiate_device_type_tests
  import torch._lazy
  import torch._lazy.config
  import torch._lazy.metrics
  import torch._lazy.ir_cache
  import torch._lazy.ts_backend
  import itertools
  import yaml
  import os
  import pathlib
  from unittest import skip
label_desc: Use image node_id 1 for calling the TestLazyDynamicOps obj's underlying member method code with example usage: obj.setUpClass(cls) and returns: super