Function push_userdata

include/sol/stack_core.hpp:902–908

		template <typename T, typename... Args>
		int push_userdata(lua_State* L, T&& t, Args&&... args) {
			using U = meta::unqualified_t<T>;
			using Tr = meta::conditional_t<std::is_pointer_v<U>,
			     detail::as_pointer_tag<std::remove_pointer_t<U>>,
			     meta::conditional_t<is_unique_usertype_v<U>, detail::as_unique_tag<U>, detail::as_value_tag<U>>>;
			return stack::push<Tr>(L, std::forward<T>(t), std::forward<Args>(args)...);
		}

		template <typename T, typename Arg, typename... Args>
		int push_userdata(lua_State* L, Arg&& arg, Args&&... args) {