42   static bool Empty(Impl* impl) { return impl->empty(); }  in Empty()
43   static size_t Size(Impl* impl) { return impl->size(); }  in Size()
45   static Iterator Begin(Impl* impl) { return impl->begin(); }  in Begin()
46   static Iterator End(Impl* impl) { return impl->end(); }  in End()
49   static PersistentContainerValue Set(Impl* impl, K key,  in Set()
59   static PersistentContainerValue Get(Impl* impl, K key) {  in Get()
64   static PersistentContainerValue Remove(Impl* impl, K key) {  in Remove()
203       typename Traits::Impl impl;  in Clear()  local
373   static void Append(Impl* impl, PersistentContainerValue value) {  in Append()
376   static bool IsEmpty(const Impl* impl) {  in IsEmpty()
379   static size_t Size(const Impl* impl) {  in Size()
382   static PersistentContainerValue Get(const Impl* impl, size_t i) {  in Get()
385   static void ReserveCapacity(Impl* impl, size_t capacity) {  in ReserveCapacity()
388   static void Clear(Impl* impl) {  in Clear()