Method basic_userdata

extlibs/sol3/include/sol/sol.hpp:25434–25434

		using base_t::lua_state;

		basic_userdata() noexcept = default;
		template <typename T, meta::enable<meta::neg<std::is_same<meta::unqualified_t<T>, basic_userdata>>, meta::neg<std::is_same<base_t, stack_reference>>, is_lua_reference<meta::unqualified_t<T>>> = meta::enabler>
		basic_userdata(T&& r) noexcept
		: base_t(std::forward<T>(r)) {