code: func NewServiceEvaluator(f quota.ListerForResourceFunc) quota.Evaluator {
  	listFuncByNamespace := generic.ListResourceUsingListerFunc(f, corev1.SchemeGroupVersion.WithResource("services"))
  	serviceEvaluator := &serviceEvaluator{listFuncByNamespace: listFuncByNamespace}
  	return serviceEvaluator
  }
docs: // NewServiceEvaluator returns an evaluator that can evaluate services.