{"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
                let res = self.typeck_results().qpath_res(qpath, pat.hir_id);
            PatKind::TupleStruct(ref qpath, fields, dotdot) => {
                self.handle_tuple_field_pattern_match(pat, res, fields, dotdot);