rules/alerting.go
func (r *AlertingRule) SetEvaluationDuration(dur time.Duration) {
	r.mtx.Lock()
	defer r.mtx.Unlock()
	r.evaluationDuration = dur
}
func (r *AlertingRule) SetEvaluationDuration(dur time.Duration) {
	r.mtx.Lock()
	defer r.mtx.Unlock()
	r.evaluationDuration = dur
}
func ( r * AlertingRule ) SetEvaluationDuration ( dur time . Duration ) { r . mtx . Lock ( ) defer r . mtx . Unlock ( ) r . evaluationDuration = dur }
// SetEvaluationDuration updates evaluationDuration to the duration it took to evaluate the rule on its last evaluation.
SetEvaluationDuration updates evaluationDuration to the duration it took to evaluate the rule on its last evaluation .