code: public void callRpcNaked(S request, T response) throws IOException {
          callRpcNaked(request, response, chooseIP(request.getIpKey()));
      }
docs: Make the call using the Request ip key to determine the IP address for
  communication.
  
  @param request
  The request to send.
  @param response
  A response to hold the returned data.
  @throws IOException