{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"TokenType::KwContractRequires"}]}
            TokenType::KwContractRequires => Some(kw::ContractRequires),
            TokenType::KwContractEnsures => Some(kw::ContractEnsures),
            TokenType::KwCrate => Some(kw::Crate),