{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"ConstArgKind::Anon(anon)"}]}
            ConstArgKind::Anon(anon) => anon.span,
            ConstArgKind::Path(path) => path.span(),
            ConstArgKind::Infer(span, _) => span,