I love reversing c++
_QWORD *__fastcall std::_Tree<std::_Tmap_traits<unsigned __int64,std::shared_ptr<BinaryCharacterRangeHandle>,std::less<unsigned __int64>,std::allocator<std::pair<unsigned __int64 const,std::shared_ptr<BinaryCharacterRangeHandle>>>,0>>::_Find_lower_bound<unsigned __int64>()