{"ast_node_type":"variable","tokens":[{"end":55,"kind":"keyword","start":0,"text":"let"}]}
    let (kind, start_offset, end_offset) = match kind {
    let TokenKind::Literal { kind, suffix_start } = lit.kind else { return Err(()) };
        LiteralKind::Int { .. } => (LitKind::Integer, 0, 0),