135 struct call_traits  struct
139   typedef void result_type;
143 struct call_traits<Impl, T, void(Property),  struct
161   typedef BOOST_ASIO_MOVE_ARG(T) result_type;
163   typedef BOOST_ASIO_MOVE_ARG(typename decay<T>::type) result_type;
168 struct call_traits<Impl, T, void(Property),  struct
190 struct call_traits<Impl, T, void(Property),  struct
215 struct call_traits<Impl, T, void(P0, P1),  struct
246   >::type result_type;
251 struct call_traits<Impl, T, void(P0, P1, PN BOOST_ASIO_ELLIPSIS),  struct
282   >::type result_type;