T_backward static method
Implementation
static TfuncTuple T_backward(Uint8List candidbytes, CandidBytes_i start_i) {
// type_code-cursion
TfuncTuple value_t_func_tuple = crawl_type_table_whirlpool(candidbytes, start_i);
Option opt_type = Option(value_type: value_t_func_tuple.item1, isTypeStance: true);
return TfuncTuple(opt_type, value_t_func_tuple.item2);
}