code: func thresholdsMetGracePeriod(observedAt thresholdsObservedAt, now time.Time) []evictionapi.Threshold {
  	results := []evictionapi.Threshold{}
  	for threshold, at := range observedAt {
  		duration := now.Sub(at)
  		if duration < threshold.GracePeriod {
  			klog.V(2).Infof("eviction manager: eviction criteria not yet met for %v, duration: %v", formatThreshold(threshold), duration)
  			continue
  		}
  		results = append(results, threshold)
  	}
  	return results
  }
docs: // thresholdsMetGracePeriod returns the set of thresholds that have satisfied associated grace period