from behavioral.memento.caretaker import Caretaker
from behavioral.memento.originator import Originator

originator = Originator("Super-duper-super-puper-super.")
caretaker = Caretaker(originator)

caretaker.backup()
originator.do_something()

caretaker.backup()
originator.do_something()

print()
caretaker.show_history()

print("\nClient: Now, let's rollback!\n")
caretaker.undo()

print("\nClient: Once more!\n")
caretaker.undo()