const output_hu_conv: WatchedOutput = new WatchedOutput(null, output);
output_hu_conv.ptrs_to.add(this);
Option_C2Tuple_usizeTransactionZZ ret = arg.register_output(output_hu_conv);
const output_hu_conv: WatchedOutput = new WatchedOutput(null, output);
output_hu_conv.ptrs_to.add(this);
Option_C2Tuple_usizeTransactionZZ ret = arg.register_output(output_hu_conv);