Method handleNotifications

src/node/interfaces.cpp:662–665

        ::uiInterface.ShowProgress(title, progress, resume_possible);
    }
    std::unique_ptr<Handler> handleNotifications(std::shared_ptr<Notifications> notifications) override
    {
        return std::make_unique<NotificationsHandlerImpl>(std::move(notifications));
    }
    void waitForNotificationsIfTipChanged(const uint256& old_tip) override
    {
        if (!old_tip.IsNull()) {