{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":")"}]}
    ) -> Result<&'tcx CoroutineLayout<'tcx>, &'tcx LayoutError<'tcx>> {
        args: GenericArgsRef<'tcx>,
        if self.is_async_drop_in_place_coroutine(def_id) {