{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"(Some(sym::simd),"}]}
        (Some(sym::simd), ArgParser::NoArgs) => Some(ReprSimd),
        (Some(sym::C), ArgParser::NoArgs) => Some(ReprC),
        (Some(sym::transparent), ArgParser::NoArgs) => Some(ReprTransparent),