if( ! function_exists( 'videotube_exclude_tagcloud_terms' ) ){
    /**
     *
     * Filter the tagcloud widget.
     *
     * @method videotube_exclude_tagcloud_terms
     *
     * @see https://codex.wordpress.org/Function_Reference/wp_tag_cloud
     *
     * @param array $args
     * @return array $args
     *
     */
    function videotube_exclude_tagcloud_terms( $args ){
        // Comma separated list of tags (term_id) to exclude. For example, exclude=5,27 means tags that have the term_id 5 or 27 will NOT be displayed
        $args['exclude'] = '5,27';
        return $args;
    }
    add_filter( 'mars_tag_cloud_value', 'videotube_exclude_tagcloud_terms', 10, 1 );
}