code: def test_cuda():
      assert torch.cuda.is_available()
  
imports: import torch
  import pytest
  import json
  import argparse
  from deepspeed.runtime.zero.config import DeepSpeedZeroConfig
  from unit.common import DistributedTest, get_test_path
  from unit.simple_model import SimpleModel, create_config_from_dict, random_dataloader
  import deepspeed.comm
  import deepspeed
  from deepspeed.runtime.config import DeepSpeedConfig, get_bfloat16_enabled
label_desc: Use image node_id 2 for calling a global function with example usage: test_cuda() without return types