#include <array>
#include <cstdint>
#include <deque>
#include <exception>
#include <forward_list>
#include <initializer_list>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <set>
#include <stdexcept>
#include <string>
#include <sstream>
#include <type_traits>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#include <xtd/optional>
#include <xtd/target_id>
#include <xtd/string>
Contains std::basic_ostream<char_t, char_traits_t>& operator <<(std::basic_ostream<char_t, char_traits_t>& os, const type_t& value) function.