func NewWatchTracker() WatchTracker {
	return &watchTracker{
		indexes:    getBuiltinIndexes(),
		watchCount: make(map[watchIdentifier]int),
	}
}

const (
	unsetValue = "<unset>"
)

func getIndexValue(r *http.Request, field string) string {
	opts := metainternalversion.ListOptions{}
	if err := scheme.ParameterCodec.DecodeParameters(r.URL.Query(), metav1.SchemeGroupVersion, &opts); err != nil {