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