Есть ли в PyQt5 встроенные модули Undo, Redo?

def __init__(self, parent=None):
    QWidget.__init__(self, parent)
    self.setAcceptDrops(True)
    self.setMouseTracking(True)
    self.setFocusPolicy(Qt.ClickFocus)
    self.selection_state = SelectionState()
    self.undo_stack = u = QUndoStack()
    u.setUndoLimit(10)
    u.canUndoChanged.connect(self.emit_undo_redo_state)
    u.canRedoChanged.connect(self.emit_undo_redo_state)
    self.original_image_data = None
    self.is_valid = False
    self.original_image_format = None
    self.current_image = None
    self.current_scaled_pixmap = None
    self.last_canvas_size = None
    self.target = QRectF(0, 0, 0, 0)
    self.undo_action = a = self.undo_stack.createUndoAction(self, _('Undo') + ' ')
    a.setIcon(QIcon(I('edit-undo.png')))
    self.redo_action = a = self.undo_stack.createRedoAction(self, _('Redo') + ' ')
    a.setIcon(QIcon(I('edit-redo.png')))