{"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"ty::Closure(def_id,"}]}
                    ty::Closure(def_id, args) => DefiningTy::Closure(def_id, args),
                match *defining_ty.kind() {
                    ty::Coroutine(def_id, args) => DefiningTy::Coroutine(def_id, args),