def _ensure_no_transaction(self):
        wsdl = self._transport.System.Session
        try:
            wsdl.rollback_transaction()
        except ServerError as e:
            if 'No transaction is open to roll back.' != str(e):
                pass
            else:
                raise
        except:
            raise
dataset/ETHPy150Open tdevelioglu/python-f5/f5/lb.py/Lb._ensure_no_transaction/operator `in` -> `!=`