}
public Option_C2Tuple_usizeTransactionZZ register_output(WatchedOutput output) {
number ret = bindings.Filter_register_output(this.ptr, output == null ? 0 : output.ptr & ~1);
Option_C2Tuple_usizeTransactionZZ ret_hu_conv = Option_C2Tuple_usizeTransactionZZ.constr_from_ptr(ret);
ret_hu_conv.ptrs_to.add(this);
}
public Option_C2Tuple_usizeTransactionZZ register_output(WatchedOutput output) {
number ret = bindings.Filter_register_output(this.ptr, output == null ? 0 : output.ptr & ~1);
Option_C2Tuple_usizeTransactionZZ ret_hu_conv = Option_C2Tuple_usizeTransactionZZ.constr_from_ptr(ret);
ret_hu_conv.ptrs_to.add(this);