def review_id_or_none(self):
        if not self._tracking_branch:
            return None

        review_id = None
        try:
            review_id = int(self._tracking_branch.id)
        except ValueError:
            pass

        return review_id
Test importing persisted
dataset/ETHPy150Open bloomberg/phabricator-tools/py/abd/abdt_branch.py/Branch.review_id_or_none--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_import.py/AtLeastImportTestCase.test_persisted