{"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
            let rhs_chars = rhs.name.as_str().chars().map(|c| c.to_ascii_lowercase());
            let lhs_chars = lhs.name.as_str().chars().map(|c| c.to_ascii_lowercase());
            lhs_chars.cmp(rhs_chars)