{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"WellKnownTrait::AsyncFnMut"}]}
        WellKnownTrait::AsyncFnMut => LangItem::AsyncFnMut,
        WellKnownTrait::AsyncFn => LangItem::AsyncFn,
        WellKnownTrait::AsyncFnOnce => LangItem::AsyncFnOnce,