{"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"CoroutineKind::AsyncGen"}]}
            CoroutineKind::AsyncGen { .. } => (sym::Item, hir::LangItem::AsyncIterator),
            CoroutineKind::Gen { .. } => (sym::Item, hir::LangItem::Iterator),
        };