}

    /**
     * Executes an explain request asynchronously.
     *
     * @param request the explain request
     * @return a future for the explain response
     */
    @Override
    public ActionFuture<ExplainResponse> explain(final ExplainRequest request) {
        return client.explain(request);
    }

    /**
     * Executes an explain request asynchronously with a callback.
     *