{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"WellKnownTrait::Tuple"}]}
        WellKnownTrait::Tuple => LangItem::Tuple,
        WellKnownTrait::Sized => LangItem::Sized,
        WellKnownTrait::Unpin => LangItem::Unpin,