static uint invokeNotification(BufferId bufId, const QString &sender, const QString &text);
static void closeNotification(uint notificationId);
static void closeNotifications(BufferId bufferId = BufferId());
static const QList<AbstractNotificationBackend::Notification> &activeNotifications();
public slots:
static uint invokeNotification(BufferId bufId, const QString &sender, const QString &text);
static void closeNotification(uint notificationId);
static void closeNotifications(BufferId bufferId = BufferId());
static const QList<AbstractNotificationBackend::Notification> &activeNotifications();
public slots: