{"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"(start,"}]}
        (start, end)
        let end = find_attr!(self.get_all_attrs(def_id), AttributeKind::RustcLayoutScalarValidRangeEnd(n, _) => Bound::Included(**n)).unwrap_or(Bound::Unbounded);
    }