{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"ty::Closure(def_id,"}]}
        ty::Closure(def_id, args) => (def_id, args.as_closure().upvar_tys()),
        ty::Coroutine(def_id, args) => (def_id, args.as_coroutine().prefix_tys()),
        ty::CoroutineClosure(def_id, args) => (def_id, args.as_coroutine_closure().upvar_tys()),