Hello. I am trying to add an Event Listener which would be called everytime diagram.lastInput's value is changed.
It would probably look like:
diagram.addModelChangedListener()
except this would be listening to changes on the Diagram itself and not just the diagram model.
P.s. the reason why I want to capture everytime lastInput changes is to create a handler for hovering over a particular targetObject which is returned and set to the InputEvent register in diagram.lastInput if that helps give you a larger context.