code: public int callRPCAsync(String rpcName, Object... args) {
          abort();
          this.rpcName = rpcName;
          asyncHandle = broker.callRPCAsync(rpcName, this, args);
          return asyncHandle;
      }
docs: Make an asynchronous call.
  
  @param rpcName The RPC name.
  @param args The RPC arguments.
  @return The async handle.