Add [custom_tags_cloud] shortcode

/**
 *
 * Add [custom_tags_cloud] shortcode
 *
 */
add_shortcode( 'custom_tags_cloud', function( $attrs = array(), $content = '' ){

    $attrs = wp_parse_args( $attrs, array(
        'taxonomy'      =>  'video_tag',
        'number'        =>  100,
        'show_count'    =>  true,
        'echo'          =>  false
    ) );

    return sprintf(
        '<div class="tagcloud">%s</div>',
        wp_tag_cloud( $attrs )
    );

}, 10, 2 );