pub unsafe extern "C" fn rcl_action_wait_set_add_action_server(
wait_set: *mut rcl_wait_set_t,
action_server: *const rcl_action_server_t,
service_index: *mut usize,
) -> rcl_ret_t
pub unsafe extern "C" fn rcl_action_wait_set_add_action_server(
wait_set: *mut rcl_wait_set_t,
action_server: *const rcl_action_server_t,
service_index: *mut usize,
) -> rcl_ret_t