public static Builder route() {
		return new RouterFunctionBuilder();
	}
@Test
	void andRoute() {
		RouterFunction<ServerResponse> routerFunction1 = request -> Optional.empty();
		RequestPredicate requestPredicate = request -> true;

		RouterFunction<ServerResponse> result = routerFunction1.andRoute(requestPredicate, this::handlerMethod);
		assertThat(result).isNotNull();

		Optional<? extends HandlerFunction<?>> resultHandlerFunction = result.route(request);
		assertThat(resultHandlerFunction).isPresent();
	}