{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"(Crate)"}]}
    (Crate)          => { exp!(@kw, Crate,      KwCrate) };
    (ContractRequires) => { exp!(@kw, ContractRequires, KwContractRequires) };
    (Default)        => { exp!(@kw, Default,    KwDefault) };