code: def is_initialized():
      """
      Returns True if comms was initialized, False otherwise.
      """
      global __instance
      if __instance is not None:
          return True
      else:
          return False
  
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 5 for calling a global function with example usage: is_initialized() and returns: True, False