public static ArmeriaHttpExchangeAdapterBuilder builder(WebClient webClient) {
        return new ArmeriaHttpExchangeAdapterBuilder(webClient);
    }
Returns a new {@link ArmeriaHttpExchangeAdapterBuilder} with the specified {@link WebClient}.
spring/spring6/src/main/java/com/linecorp/armeria/spring/client/ArmeriaHttpExchangeAdapter.java