__gnu_pbds::detail::trie_traits3

template<typename Key, typename Data, typename _ATraits, template< typename Node_CItr, typename Node_Itr, typename _ATraits_, typename _Alloc > class Node_Update, typename Tag, typename _Alloc>

struct __gnu_pbds::detail::trie_traits< Key, Data, _ATraits, Node_Update, Tag, _Alloc >"Trie traits class, primary template.