{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"let"}]}
            let spans: Vec<_> = trait_items.iter().map(|i| i.kind.ident().unwrap().span).collect();
        if !trait_items.is_empty() {
            let total = trait_items.first().unwrap().span.to(trait_items.last().unwrap().span);