• promise_type : dpp::detail::std_coroutine::coroutine_traits< dpp::coroutine< R >, Args... > , dpp::detail::std_coroutine::coroutine_traits< dpp::job, Args... > , dpp::detail::std_coroutine::coroutine_traits< dpp::task< T >, Args... >
• type : dpp::detail::when_any::arg_helper_s< T > , dpp::detail::when_any::arg_helper_s< dpp::event_router_t< T > >