{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"let"}]}
                                let res = Res::Def(DefKind::Mod, CRATE_DEF_ID.to_def_id());
                            names.extend(self.r.extern_prelude.keys().flat_map(|ident| {
                                filter_fn(res)