Admin_Apple_Notice::message PHP Method

    public static function message($message, $type, $user_id = null)
    {
        if (empty($user_id)) {
            $user_id = get_current_user_id();
        }
        self::add_user_meta($user_id, self::KEY, array('message' => sanitize_text_field($message), 'type' => sanitize_text_field($type)));
    }