*/
    @Override
    public TermVectorsRequestBuilder prepareTermVectors(final String index, final String id) {
        return client.prepareTermVectors(index, id);
    }

    /**
     * Gets term vectors for multiple documents asynchronously.
     *
     * @param request the multi-term vectors request
     * @return a future for the multi-term vectors response
     */
    @Override

    /** The key of the message: Label */
    public static final String LABELS_TARGET_LABEL = "{labels.targetLabel}";

    /** The key of the message: Term */
    public static final String LABELS_TERM = "{labels.term}";

    /** The key of the message: Fields */
    public static final String LABELS_FIELDS = "{labels.fields}";

    /** The key of the message: Extended Query */