{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"let"}]}
            let Some(trait_names) = listify(&trait_names, |n| n.to_string()) else { return false };
            let trait_ = if all_known { format!("trait{}", pluralize!(n)) } else { String::new() };
            format!("{stable}{trait_} {trait_names}")