return switch (responseType) {
        case METADATA -> getMetadataResponse();
        case LOGOUT -> getLogoutResponse();
        default -> null;
        };
    }

    /**
     * Gets the metadata response.
     * @return The metadata response.
     */
    protected ActionResponse getMetadataResponse() {

     */
    List<StorageItem> listObjects(String prefix, int maxItems);

    /**
     * Gets tags/metadata for an object.
     *
     * @param objectName the name/path of the object
     * @return map of tag key-value pairs
     */
    Map<String, String> getObjectTags(String objectName);

    /**
     * Sets tags/metadata for an object.
     *
     * @param objectName the name/path of the object

            if (blob == null) {
                return Collections.emptyMap();
            }
            // GCS uses metadata instead of tags
            final Map<String, String> metadata = blob.getMetadata();
            return metadata != null ? new HashMap<>(metadata) : Collections.emptyMap();
        } catch (final Exception e) {
            throw new StorageException("Failed to get tags from " + objectName, e);

    String CRAWLER_METADATA_CONTENT_EXCLUDES = "crawler.metadata.content.excludes";

    /** The key of the configuration. e.g. title=title:string<br>
     * Title=title:string<br>
     * dc:title=title:string<br>
     *  */
    String CRAWLER_METADATA_NAME_MAPPING = "crawler.metadata.name.mapping";

    /** The key of the configuration. e.g. //BODY */