How to use the guiscrcpy.ui.resources.notif.MyApp function in guiscrcpy

self.listWidget.addItems([deco])
            if exist:
                self.listWidget.addItems(["You may have more notifications."
                                          " guiscrcpy do not have enough permissions to view them."])
        else:
            self.listWidget.addItems(["You have no notifications here!"])


if __name__ == "__main__":

    app = QtWidgets.QApplication(sys.argv)

    # app.aboutToQuit().connect(app.deleteLater)
    window = QtWidgets.QMainWindow()

    prog = MyApp(window)

    window.show()

    app.exec_()

    sys.exit()

def __init__(self, Dialog):
        super(MyApp, self).__init__()
        Ui_Dialog.__init__(self)
        self.setupUi(Dialog)

        self.readNotif()