{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"assert_eq!(cast.rest.unit.size,"}]}
        assert_eq!(cast.rest.unit.size, cast.rest.total);
        assert!(cast.prefix[1..].iter().all(|p| p.is_none()));
        let first = cast.prefix[0].unwrap();