{"ast_node_type":"other","tokens":[{"end":29,"kind":"keyword","start":0,"text":"Ok(expr)"}]}
            Ok(expr) => expr,
        match self.maybe_recover_struct_lit_bad_delims(lo, open_paren, seq, snapshot) {
            Err(err) => self.recover_seq_parse_error(exp!(OpenParen), exp!(CloseParen), lo, err),