    void readStructBegin(NimbleProtocolReader* iprot) {
      iprot->readStructBegin("");
      borrowFieldPtrs(iprot);
      decoderState = iprot->borrowState();
    }
    void readStructBegin(NimbleProtocolReader* iprot) {
      iprot->readStructBegin("");
      borrowFieldPtrs(iprot);
      decoderState = iprot->borrowState();
    }