def save(self):
        tmp_path = self.path + '.tmp'
        with open(tmp_path, 'w') as f:
            f.write(json.dumps(self.body_labels.items()))
        os.rename(tmp_path, self.path)
def _find_user(self, dn):
        return next(i for (i, d) in enumerate(self.directory) if d["dn"] == dn)