{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"!self.r.field_idents(def_id).is_some_and(|field_ids|"}]}
                        !self.r.field_idents(def_id).is_some_and(|field_ids| field_ids.is_empty())
                    CtorKind::Fn => {
                    }