def on_closebutton_handle_clicked(self, _widget):
        self._terminate.set()
        self.top_widget.destroy()
        self.top_widget = None
Check if we have a keypair. If not, create it.
dataset/ETHPy150Open thesamet/webilder/src/webilder/progress_dialog.py/ProgressDialog.on_closebutton_handle_clicked--crossover with--dataset/ETHPy150Open ravello/testmill/lib/testmill/keypair.py/default_keypair