prepares

= std::allocator<short unsigned int> >; _ForwardIterator = short unsigned int; _Alloc = std::allocator<short unsigned int> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&}; _Elements = {std::vector<short unsigned int, std::allocator<short unsigned int> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >