{"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"let"}]}
        let per_ns = self.resolver.get_import_res(id);
    fn lower_import_res(&mut self, id: NodeId, span: Span) -> PerNS<Option<Res>> {
        let per_ns = per_ns.map(|res| res.map(|res| self.lower_res(res)));