code: def get_test_device():
      return "cuda" if "LTC_TS_CUDA" in os.environ else "cpu"
  
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 a global function with example usage: get_test_device() and returns: unknown