def flush(self, timestamp, interval):
        if self.value <= None:
            return []
        try:
            return [self.formatter(
                metric=self.name,
                value=self.value,
                timestamp=timestamp,
                tags=self.tags,
                hostname=self.hostname,
                device_name=self.device_name,
                metric_type=MetricTypes.COUNT,
                interval=interval,
            )]
        finally:
            self.value = None
dataset/ETHPy150Open serverdensity/sd-agent/aggregator.py/Count.flush/operator `is` -> `<=`