importgigi.require_version('Gtk','3.0')fromgi.repositoryimportGtkclassHandler:defonDeleteWindow(self,*args):Gtk.main_quit(*args)defon_close_button_clicked(self,button):print(builder.get_objects())Gtk.main_quit()defon_show_on_next_login_toggled():print("Button has been toggled")print("(but nothing happens yet)")builder=Gtk.Builder()builder.add_from_file("/usr/share/hamara-desktop-welcome/welcome.glade")builder.connect_signals(Handler())window=builder.get_object("window1")window.show_all()#Gtk.Button.set_label(label="Hi there")Gtk.main()