pub unsafe extern "C" fn rcl_action_process_cancel_request(
action_server: *const rcl_action_server_t,
cancel_request: *const rcl_action_cancel_request_t,
cancel_response: *mut rcl_action_cancel_response_t,
) -> rcl_ret_t
pub unsafe extern "C" fn rcl_action_process_cancel_request(
action_server: *const rcl_action_server_t,
cancel_request: *const rcl_action_cancel_request_t,
cancel_response: *mut rcl_action_cancel_response_t,
) -> rcl_ret_t