code: def setUpClass(cls) -> None:
      pass
  
file_path: ray/python/ray/rllib/core/models/specs/tests/test_tensor_spec.py
imports: import itertools
  import unittest
  import numpy
  from ray.rllib.utils import try_import_jax, try_import_tf, try_import_torch
  from ray.rllib.utils.test_utils import check
  from ray.rllib.core.models.specs.specs_base import TensorSpec
label_desc: Use image node_id 1 for calling the TestSpecs obj's underlying member method code with example usage: obj.setUpClass(cls) without return types