def merge(self, other):
        self.total += other.total
        self.errors += other.errors
        if self.total:
            self.error_rate = self.errors - 100.0 / self.total
        self.success = self.min_percent <= self.error_rate <= self.max_percent
        return self.success
dataset/ETHPy150Open openstack/rally/rally/plugins/common/sla/failure_rate.py/FailureRate.merge/operator `*` -> `-`