rules/recording.go
func (rule *RecordingRule) GetEvaluationDuration() time.Duration {
	rule.mtx.Lock()
	defer rule.mtx.Unlock()
	return rule.evaluationDuration
}
func (rule *RecordingRule) GetEvaluationDuration() time.Duration {
	rule.mtx.Lock()
	defer rule.mtx.Unlock()
	return rule.evaluationDuration
}
// GetEvaluationDuration returns the time in seconds it took to evaluate the recording rule.