44   using key_arg =
93   iterator find(const key_arg<K> &key) {  in find()
97   const_iterator find(const key_arg<K> &key) const {  in find()
101   bool contains(const key_arg<K> &key) const {  in contains()
105   iterator lower_bound(const key_arg<K> &key) {  in lower_bound()
109   const_iterator lower_bound(const key_arg<K> &key) const {  in lower_bound()
113   iterator upper_bound(const key_arg<K> &key) {  in upper_bound()
117   const_iterator upper_bound(const key_arg<K> &key) const {  in upper_bound()
121   std::pair<iterator, iterator> equal_range(const key_arg<K> &key) {  in equal_range()
126       const key_arg<K> &key) const {  in equal_range()
221   using key_arg = typename super_type::template key_arg<K>;
255   size_type count(const key_arg<K> &key) const {  in count()
320   size_type erase(const key_arg<K> &key) {  in erase()
327   node_type extract(const key_arg<K> &key) {  in extract()
377   using key_arg = typename super_type::template key_arg<K>;
503   mapped_type &at(const key_arg<K> &key) {  in at()
510   const mapped_type &at(const key_arg<K> &key) const {  in at()
527   using key_arg = typename super_type::template key_arg<K>;  variable
560   size_type count(const key_arg<K> &key) const {  in count()
610   size_type erase(const key_arg<K> &key) {  in erase()
617   node_type extract(const key_arg<K> &key) {  in extract()