{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"Radix::Hexadecimal"}]}
            Radix::Hexadecimal => |(_, c)| matches!(c, 'g'..='z' | 'G'..='Z'),
        let is_suffix_start: fn(&(usize, char)) -> bool = match radix {
            _ => |(_, c)| c.is_ascii_alphabetic(),