{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"WellKnownTrait::AsyncFn"}]}
        WellKnownTrait::AsyncFn => LangItem::AsyncFn,
        WellKnownTrait::FnOnce => LangItem::FnOnce,
        WellKnownTrait::AsyncFnMut => LangItem::AsyncFnMut,