1. Constructors
  2. UndoHistoryController
  3. Properties
  4. hashCode
  5. hasListeners
  6. onRedo
  7. onUndo
  8. runtimeType
  9. value
  10. Methods
  11. addListener
  12. dispose
  13. noSuchMethod
  14. notifyListeners
  15. redo
  16. removeListener
  17. toString
  18. undo
  19. Operators
  20. operator ==