code: def test_runtime_env_conda_not_exists_not_hang(shutdown_only):
      """Verify when the conda env doesn't exist, it doesn't hang Ray."""
      ray.init(runtime_env={"conda": "env_which_does_not_exist"})
  
      @ray.remote
      def f():
          return 1
  
      refs = [f.remote() for _ in range(5)]
  
      for ref in refs:
          with pytest.raises(
              ray.exceptions.RuntimeEnvSetupError
          ) as exc_info:
              ray.get(ref)
          assert (
              "doesn't exist from the output of `conda env list --json`"
              in str(exc_info.value)
          )
  
imports: import os
  import pytest
  import sys
  import platform
  import time
  from ray._private.test_utils import wait_for_condition, chdir, check_local_files_gced, generate_runtime_env_dict
  from ray._private.runtime_env.conda import _get_conda_dict_with_ray_inserted
  from ray._private.runtime_env.pip import INTERNAL_PIP_FILENAME, MAX_INTERNAL_PIP_FILENAME_TRIES, _PathHelper
  from ray.runtime_env import RuntimeEnv
  import yaml
  import tempfile
  from pathlib import Path
  import subprocess
  import ray
label_desc: Use image node_id 4 for calling a global function with example usage: test_runtime_env_conda_not_exists_not_hang(shutdown_only) and returns: int