{"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"def_id:"}]}
        def_id: DefId,
    query coroutine_hidden_types(
    ) -> ty::EarlyBinder<'tcx, ty::Binder<'tcx, ty::CoroutineWitnessTypes<TyCtxt<'tcx>>>> {