@Override
  public String toString() {
    return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
      .append("regionInfo", regionInfo).append("regionSizeMb", regionSizeMb).toString();
  }
A POJO that caries details about a region selected for normalization through the pipeline.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/normalizer/NormalizationTarget.java