code: protected void onRPCComplete(int asyncHandle, String data) {
          IAsyncRPCEvent callback = getCallback(asyncHandle);
          
          if (callback != null) {
              callback.onRPCComplete(asyncHandle, data);
          }
      }
docs: Invokes the callback for the specified handle upon successful completion of an asynchronous
  RPC call.
  
  @param asyncHandle The unique handle for the asynchronous RPC call.
  @param data The data returned by the RPC.