public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      {
        int dataSize = 0;
        for (int i = 0; i < cells_.size(); i++) {
          dataSize += com.google.protobuf.CodedOutputStream
            .computeBytesSizeNoTag(cells_.getByteString(i));
        }
        size += dataSize;
        size += 1 * getCellsList().size();
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }