// rest. Like calling Delete for all keys not specified.
func (m *BiMultimap) KeepOnly(keys []Key) {
	m.mux.Lock()
	defer m.mux.Unlock()

	keyMap := make(map[Key]bool)
	for _, k := range keys {
		keyMap[k] = true
	}
	for k := range m.labeledObjects {
		if !keyMap[k] {
			m.delete(k)
		}
	}
}

// KeepOnlySelectors retains only the specified selecting objects and

		}
	}
	if !updated {
		// Append to the end of tags list
		r.tags = append(r.tags, KeyVal{key, val})
	}
	return r
}

// GetTags - returns the user defined tags
func (r *ReqInfo) GetTags() []KeyVal {
	if r == nil {
		return nil
	}
	r.RLock()
	defer r.RUnlock()
	return append(make([]KeyVal, 0, len(r.tags)), r.tags...)
}

// GetTagsMap - returns the user defined tags in a map structure

	var labelPairs []keyVal
	for k, v := range labels {
		labelPairs = append(labelPairs, keyVal{k: k, v: v})
	}
	zones := 10
	// build nodes
	for i := 0; i < allNodesNum; i++ {
		node := MakeNode().Name(fmt.Sprintf("node%d", i)).

// whether they are valid or whether we have reached the end.
func (it *Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next()
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true

// whether they are valid or whether we have reached the end.
func (it *Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next()
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true

// whether they are valid. If not valid, we have reached the end of the map.
func (it *Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next(context.Background())
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true
}

// Equal reports whether two slices are equal: the same length and all

// whether they are valid or whether we have reached the end.
func (it *Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next()
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true
}

// chans

func chans_Ranger[T any]() (*chans_Sender[T], *chans_Receiver[T])

// whether they are valid or whether we have reached the end.
func (it *Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next()
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true
}

// chans

func chans_Ranger[T any]() (*chans_Sender[T], *chans_Receiver[T]) { panic(0) }

// whether they are valid or whether we have reached the end.
func (it *Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next()
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true

// whether they are valid. If not valid, we have reached the end of the map.
func (it *_Iterator[K, V]) Next() (K, V, bool) {
	keyval, ok := it.r.Next(context.Background())
	if !ok {
		var zerok K
		var zerov V
		return zerok, zerov, false
	}
	return keyval.key, keyval.val, true
}

func TestMap() {
	m := _New[[]byte, int](bytes.Compare)

	if _, found := m.Find([]byte("a")); found {