code: def destroy():
      """
      Shuts down initialized comms and cleans up resources.
      """
      global __instance
      if is_initialized():
          __instance.destroy()
          __instance = None
  
file_path: cugraph/python/cugraph/cugraph/dask/comms/comms.py
imports: from cugraph.dask.common.read_utils import MissingUCXPy
  from pylibraft.common.handle import Handle
  from cugraph.dask.comms.comms_wrapper import init_subcomms
  from dask.distributed import default_client, get_worker
  from cugraph.dask.common import read_utils
  import math
label_desc: Use image node_id 10 for calling a global function with example usage: destroy() without return types