Ищу аналог union/enum/adt для Python/Go

enum Data {
    Number(u32),
    String(String),
}

let mut items = Vec::new();
items.push(Data::Number(5));
items.push(Data::String("text".to_string()));

for item in items {
    match item {
        Data::Number(n) => println!("Number {}", n),
        Data::String(ref s) => println!("String {}", s),
    }
}

std::vector<std::variant<int, std::string>> items;
items.push_back(5);
items.push_back("text");

for (const auto &item : items) {
    if (const auto n = std::get_if<int>(&item)) {
        std::cout << "Number " << *n << std::endl;
    } else if (const auto &s = std::get_if<std::string>(&item)) {
        std::cout << "String " << *s << std::endl;
    }
}