@Override
    public CompletableFuture<WebSocketResponse> buildWebSocketDirect(
            StandardWebSocketBuilder standardWebSocketBuilder, WebSocket.Listener listener) {
        return webSocketClient.execute(standardWebSocketBuilder, listener);
    }
Armeria based implementation of {@link StandardHttpClient}.
kubernetes/src/main/java/com/linecorp/armeria/client/kubernetes/ArmeriaHttpClient.java