def __init__(self, interval, event, *channels, **kwargs):

        super(Timer, self).__init__()

        self.expiry = None
        self.interval = None
        self.event = event
        self.channels = channels
        self.persist = kwargs.get("persist", False)

        self.reset(interval)
Ensure select_related together with only on a proxy model behaves
dataset/ETHPy150Open circuits/circuits/circuits/core/timers.py/Timer.__init__--crossover with--dataset/ETHPy150Open django/django/tests/defer/tests.py/TestDefer2.test_defer_proxy