Method print

extern/Catch2/catch.hpp:1928–1932

            >
            struct TupleElementPrinter {
            static void print(const Tuple& tuple, std::ostream& os) {
                os << (N ? ", " : " ")
                    << ::Catch::Detail::stringify(std::get<N>(tuple));
                TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
            }
        };

        template<