{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"ConstScalar::UnevaluatedConst(const_id,"}]}
            ConstScalar::UnevaluatedConst(const_id, subst) => 'b: {
            ConstScalar::Bytes(v, mm) => (v, mm),
                let mut const_id = *const_id;