{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"SubdiagnosticKind::Label"}]}
            SubdiagnosticKind::Label => parse_quote! { _subdiag::label },
        let slug = subdiag.slug.unwrap_or_else(|| match subdiag.kind {
            SubdiagnosticKind::Note => parse_quote! { _subdiag::note },