Feature request: Scoping events to a parent event

[smunshimi]

Description
Scoping events to a bucket?

  on<TriggerEvent>((event, emit) {
      
       add(SomeEvent());
      
    }, transformer: restartable());

Then if the event has let's say a sequential transformer:

       on<SomeEvent>((event, emit) {

       // do something

    }, transformer: sequential());

Is there a way to achieve scoping SomeEvent to TriggerEvent since it is the "parent" event?

Adding another TriggerEvent would cancel SomeEvent and restart it.

SomeEvent will be emitted sequentially since it has the sequential transformer but another TriggerEvent will still cancel the event and restart it.

How can this be achieved please?