def try_close_model(self):
if self._model_mgr.modified:
reply = QMessageBox.question(
self.modeler,
"OPC UA Modeler",
"Model is modified, do you really want to close model?",
QMessageBox.Yes | QMessageBox.No | QMessageBox.Cancel
)
if reply != QMessageBox.Yes:
return False
self._model_mgr.close_model(force=True)
return True
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