A wrapper class if you want, a wrapper type with methods / dedicated functions. Still, seems pretty ergonomic to me. Yeah we went from one line to three, but the three lines guarantee safety whereas the one doesn't so?

Also I'm not sure the token count is very relevant for an Anthropic employee who just spent 165k worth of token rewriting the whole thing in Rust. Sprinkling a few defers here and there and swapping types surely would have been immensely cheaper in tokens.