How to use the orange3.Orange.canvas.document.interactions.UserInteraction.end function in Orange3

def end(self):
        self.down_pos = None
        self.arrow_item = None
        self.annotation = None
        self.document.view().setCursor(Qt.ArrowCursor)

        # Clear the help tip
        helpevent = QuickHelpTipEvent("", "")
        QCoreApplication.postEvent(self.document, helpevent)

        UserInteraction.end(self)

def end(self):
        if self.control is not None:
            self.scene.removeItem(self.control)

        if self.item is not None:
            self.item.geometryChanged.disconnect(self.__on_lineGeometryChanged)

        self.control = None
        self.item = None
        self.annotation = None

        UserInteraction.end(self)

def end(self):
        if self.control is not None:
            self.scene.removeItem(self.control)

        if self.item is not None:
            self.item.setFramePen(self.savedFramePen)

        self.item = None
        self.annotation = None
        self.control = None

        UserInteraction.end(self)

def end(self):
        self.cleanup()
        # Remove the help tip set in mousePressEvent
        self.macro = None
        helpevent = QuickHelpTipEvent("", "")
        QCoreApplication.postEvent(self.document, helpevent)
        UserInteraction.end(self)

def end(self):
        if self.control is not None:
            self.scene.removeItem(self.control)

        self.control = None
        self.down_pos = None
        self.annotation_item = None
        self.annotation = None
        self.document.view().setCursor(Qt.ArrowCursor)

        # Clear the help tip
        helpevent = QuickHelpTipEvent("", "")
        QCoreApplication.postEvent(self.document, helpevent)

        UserInteraction.end(self)

def end(self):
        self.initial_selection = None
        self.last_selection = None
        self.modifiers = 0

        self.rect_item.hide()
        if self.rect_item.scene() is not None:
            self.scene.removeItem(self.rect_item)
        UserInteraction.end(self)