+ Reference.reachabilityFence(pubkeys_arg);
+ Reference.reachabilityFence(selected_contest_delay_arg);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ CounterpartyChannelTransactionParameters ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new CounterpartyChannelTransactionParameters(null, ret); }