@Override
  public long sizeInBytes() {
    return super.sizeInBytes() + BATCH_DELETE_PARTITION_REQUEST_INFO_LIST_SIZE_IN_BYTES
        + totalPartitionRequestInfoListSizeInBytes + DELETION_TIME_FIELD_SIZE_IN_BYTES;
  }
Gets the deletion time in ms
@return the deletion time in ms
ambry-protocol/src/main/java/com/github/ambry/protocol/BatchDeleteRequest.java