@ApiStatus.Internal
  public void addFocusSegmentListener(FocusModeModelListener newListener, Disposable disposable) {
    mySegmentListeners.add(newListener);
    Disposer.register(disposable, () -> mySegmentListeners.remove(newListener));
  }
@ApiStatus.Internal
  public void addFocusSegmentListener(FocusModeModelListener newListener, Disposable disposable)