def METHOD_NAME(self):
    metrics = self._get_metrics([self._get_change()])
    self.assertEqual(set(metrics.to_flattened_dict()), {
        'commcare.change_feed.changes.count.datasource:test_commcarehq',
        'commcare.change_feed.changes.count.pillow_name:fake pillow',
        'commcare.change_feed.changes.count.case_type:NA',
        'commcare.change_feed.change_lag.pillow_name:fake pillow',
        'commcare.change_feed.change_lag.topic:case',
        'commcare.change_feed.processing_time.total.pillow_name:fake pillow',
        'commcare.change_feed.processing_time.count.pillow_name:fake pillow',
    })