code: func (p *PriorityQueue) isPodBackingOff(pod *v1.Pod) bool {
  	boTime, exists := p.podBackoff.GetBackoffTime(nsNameForPod(pod))
  	if !exists {
  		return false
  	}
  	return boTime.After(p.clock.Now())
  }
docs: // isPodBackingOff returns true if a pod is still waiting for its backoff timer.
  // If this returns true, the pod should not be re-tried.