*/
    public static void downloadObject(final String objectName, final org.lastaflute.web.servlet.request.stream.WrittenStreamOut out) {
        try (final StorageClient client = StorageClientFactory.createClient()) {
            final ByteArrayOutputStream baos = new ByteArrayOutputStream();
            client.downloadObject(objectName, baos);

        } catch (final Exception e) {
            throw new StorageException("Failed to upload " + objectName, e);
        }
    }

    @Override
    public void downloadObject(final String objectName, final OutputStream outputStream) {
        try {
            final Blob blob = storage.get(BlobId.of(bucket, objectName));
            if (blob == null) {