code: def rpc_async(worker_name: str, call_id: int, args=None, kwargs=None):
      r"""Performs an asynchronous RPC request and returns a future."""
      return rpc.rpc_async(
          to=worker_name,
          func=_rpc_async_call,
          args=(call_id, *args),
          kwargs=kwargs,
      )
  
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 10 for calling a global function with example usage: rpc_async(worker_name, call_id, args, kwargs) and returns: rpc