what is the replacement for UI.getCurrent().getConnectorTracker() in vaadin

I am working vaadin 14 upgrade from vaadin 8. I just want to know the replacement for UI.getCurrent().getConnectorTracker() in vaadin 14 Flow.

In vaadin 8, i can do it like below by using UI.getCurrent().getConnectorTracker(),

UI.getCurrent().getConnectorTracker().markAllConnectorsDirty();
UI.getCurrent().getConnectorTracker().markAllClientSidesUninitialized();
UI.getCurrent().getConnectorTracker().cleanConnectorMap();

please suggest possible alternate in vaadin 14.