{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"WellKnownTrait::AsyncFnOnce"}]}
        WellKnownTrait::AsyncFnOnce => LangItem::AsyncFnOnce,
        WellKnownTrait::AsyncFnMut => LangItem::AsyncFnMut,
        WellKnownTrait::Coroutine => LangItem::Coroutine,