{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"ty::CoroutineClosure(_,"}]}
            ty::CoroutineClosure(_, args) => {
            ty::Closure(_, args) => self.open_drop_for_tuple(args.as_closure().upvar_tys()),
                self.open_drop_for_tuple(args.as_coroutine_closure().upvar_tys())