code: def rpc_is_initialized() -> bool:
      from torch._C._distributed_rpc import _is_current_rpc_agent_set
  
      return _is_current_rpc_agent_set()
  
imports: import logging
  import threading
  from abc import ABC, abstractmethod
  from typing import Any, Callable, Dict, List, Optional
  from torch.distributed import rpc
  from torch_geometric.distributed.dist_context import DistContext, DistRole
label_desc: Use image node_id 1 for calling a global function with example usage: rpc_is_initialized() and returns: _is_current_rpc_agent_set