    void borrowFieldPtrs(NimbleProtocolReader* iprot) {
      folly::ByteRange curRange = iprot->decoder_.fieldRange();
      fieldCur = curRange.begin();
      fieldEnd = curRange.end();
    }
    void borrowFieldPtrs(NimbleProtocolReader* iprot) {
      folly::ByteRange curRange = iprot->decoder_.fieldRange();
      fieldCur = curRange.begin();
      fieldEnd = curRange.end();
    }