code: def shared_ray_instance():
      # Remove ray address for test ray cluster in case we have
      # lingering RAY_ADDRESS="http://127.0.0.1:8265" from previous local job
      # submissions.
      if "RAY_ADDRESS" in os.environ:
          del os.environ["RAY_ADDRESS"]
      yield ray.init(
          num_cpus=16, namespace=TEST_NAMESPACE, log_to_driver=True
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: shared_ray_instance() without return types