}
	if m.Client == nil {
		errs = append(errs, fmt.Errorf("the namespace matcher requires a client"))
	}
	return utilerrors.NewAggregate(errs)
}

// GetNamespaceLabels gets the labels of the namespace related to the attr.
func (m *Matcher) GetNamespaceLabels(attr admission.Attributes) (map[string]string, error) {
	// If the request itself is creating or updating a namespace, then get the

		}
		revisions.InsertAll(revs...)
		return true
	})

	// Set up all relevant namespace and object selector permutations
	namespaceLabels := getNamespaceLabels()
	for rev := range revisions {
		for _, base := range getNamespaceLabels() {
			base[label.IoIstioRev.Name] = rev
			namespaceLabels = append(namespaceLabels, base)
		}
	}
	objectLabels := getObjectLabels()
	for rev := range revisions {