bbpress Custom last_poster_block_topics

    /* Last poster / freshness block for topics */
    public function custom_last_poster_block_topics() {
        echo BBP_Default::custom_get_last_poster_block_topics();
    }

        public function custom_get_last_poster_block_topics() {

                $output .= "<div class='last-posted-topic-user'>";
                $output .= bbp_get_reply_author_link( array( 'post_id' => bbp_get_topic_last_active_id(), 'size' => '14' ) );
                $output .= "</div>";
                $output .= "<div class='last-posted-topic-time'>";
                $output .= bbp_get_topic_last_active_time( bbp_get_topic_last_active_id() );
                $output .= "</div>";

            return $output;

        }