def push_notification(self, notification):
        if not isinstance(notification, Notification):
            raise TypeError('notification should be an instance of ios_notifications.models.Notification')

        self.service.push_notification_to_devices(notification, [self])
Test if the fixture works fine if there are multiple readers
dataset/ETHPy150Open stephenmuss/django-ios-notifications/ios_notifications/models.py/Device.push_notification--crossover with--dataset/ETHPy150Open enthought/mayavi/mayavi/tests/test_registry.py/TestRegistry.test_multiple_valid_readers