public function __construct($label, $name, $key, $custom_settings = [])
{
$base_settings = ['prefix' => '', 'type' => 'gallery', 'instructions' => '', 'required' => 0, 'conditional_logic' => 0, 'wrapper' => array('width' => '', 'class' => '', 'id' => ''), 'min' => '', 'max' => '', 'preview_size' => 'thumbnail', 'library' => 'all', 'min_width' => '', 'min_height' => '', 'min_size' => '', 'max_width' => '', 'max_height' => '', 'max_size' => '', 'mime_types' => ''];
parent::__construct($label, $name, $key, $base_settings, $custom_settings);
}