{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"(NameValueStr:"}]}
    (NameValueStr: $descr: expr) => { template!(@ false, None, Some($descr)) };
    (List: $descr: expr) => { template!(@ false, Some($descr), None) };
    (Word, List: $descr: expr) => { template!(@ true, Some($descr), None) };