Function get

extlibs/sol3/include/sol/sol.hpp:10385–10401

		template <typename T>
		auto get(lua_State* L, int index, record& tracking) -> decltype(stack_detail::unchecked_get<T>(L, index, tracking)) {
#if defined(SOL_SAFE_GETTER) && SOL_SAFE_GETTER
			static constexpr bool is_op = meta::is_optional_v<T>;
			if constexpr (is_op) {
				return stack_detail::unchecked_get<T>(L, index, tracking);
			}
			else {
				if (is_lua_reference<T>::value) {
					return stack_detail::unchecked_get<T>(L, index, tracking);
				}
				auto op = check_get<T>(L, index, type_panic_c_str, tracking);
				return *std::move(op);
			}
#else
			return stack_detail::unchecked_get<T>(L, index, tracking);
#endif
		}

		template <typename T>
		decltype(auto) get(lua_State* L, int index = -lua_size<meta::unqualified_t<T>>::value) {