CompletionToken, std::net::completion_signature Signature, class Initiation, class... Args> DEDUCED async_initiate(Initiation&& initiation, CompletionToken& token, Args&&... args); Eliminates std::net::async_result template decltype(auto) async_wait(CompletionToken&& token) { return std::net::async_initiate([&](auto h) { auto ex = std::net::get_associated_executor(h, ex_); template decltype(auto) async_wait(CompletionToken&& token) { return std::net::async_initiate([&](auto h) { auto ex = std::net::get_associated_executor(h, ex_);