Method post

include/exec/asio/completion_token.hpp:550–553

          std::declval<Executor const &>().post(std::declval<F>(), std::declval<A const &>());
        }
      constexpr void post(F&& f, A const & a) const noexcept
      {
        self_.run_([&]() { ex_.post(wrap_(static_cast<F&&>(f)), a); });
      }

      template <typename F, typename A>
        requires requires {