def service(self):
        if self.enabled:
            enable = self.enabled
            try:
                # Prevent recursion
                self.enabled = False
                next(self._task)
            finally:
                self.enabled = enable
A session with an expired token raises an unauthorized exception
dataset/ETHPy150Open numba/numba/numba/servicelib/service.py/Service.service--crossover with--dataset/ETHPy150Open freakboy3742/pyxero/tests/exceptions.py/ExceptionsTest.test_unauthorized_expired