code: def skip_ray_if_not_installed(
      value, reason="Ray dependency is required for these tests."
  ):
      return pytest.param(
          value,
          marks=pytest.mark.skipif(
              not HAS_RAY,
              reason=reason,
          ),
      )
  
imports: import os
  import time
  import pytest
  from orion.executor.base import AsyncException, ExecutorClosed, executor_factory
  from orion.executor.dask_backend import HAS_DASK, Dask
  from orion.executor.multiprocess_backend import PoolExecutor
  from orion.executor.ray_backend import HAS_RAY, Ray
  from orion.executor.single_backend import SingleExecutor
label_desc: Use image node_id 6 for calling a global function with example usage: skip_ray_if_not_installed(value, reason) and returns: pytest