code: private static BiFunction<HttpClientResponse, Connection, Publisher<HttpResponse>> responseDelegate(final HttpRequest restRequest) {
          return (reactorNettyResponse, reactorNettyConnection) ->
              Mono.just(new ReactorNettyHttpResponse(reactorNettyResponse, reactorNettyConnection).withRequest(restRequest));
      }
docs: Delegate to receive response.
  
  @param restRequest the Rest request whose response this delegate handles
  @return a delegate upon invocation setup Rest response object