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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def save_to_local(self, callback_etat=print):
 """ Saved current in memory base to local file. It's a backup, not a convenient way to update datas :param callback_etat: state callback, taking str,int,int as args """

        callback_etat("Aquisition...", 0, 3)
        d = self.dumps()
        s = json.dumps(d, indent=4, cls=formats.JsonEncoder)
        callback_etat("Chiffrement...", 1, 3)
        s = security.protege_data(s, True)
        callback_etat("Enregistrement...", 2, 3)
        try:
            with open(self.LOCAL_DB_PATH, 'wb') as f:
                f.write(s)
        except (FileNotFoundError):
            logging.exception(self.__class__.__name__)
            raise StructureError("Chemin de sauvegarde introuvable !")