{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"this.with_label_rib(RibKind::ConstantItem(may_use_generics,"}]}
                        this.with_label_rib(RibKind::ConstantItem(may_use_generics, item), f);
                    |this| {
                    },