/**
  * Singleton model
  */
 public static function get_instance()
 {
     if (!self::$instance) {
         self::$instance = new self();
     }
     return self::$instance;
 }
function msan_display_admin_notices()
{
    /*$notice_id = msan_insert_notice( array(
    		'message' => 'hello world!',
    	));
    	var_dump( $notice_id );*/
    $notices = msan_get_notices();
    if ($notices) {
        $notice_handler = Multsite_Admin_Notice_Handler::get_instance();
        foreach ($notices as $notice) {
            $notice_handler->add_notice($notice['id'], false, $notice['message']);
        }
    }
}