in_param1, in_param2, in_param3, in_param4, &out_param);
BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
in_param1, in_param2, in_param3, in_param4, &out_param);
BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);