@Override
  protected void appendFields(StringBuilder buff) {
    super.appendFields(buff);
    buff.append("; bucketId=").append(bucketId).append("; bucketSize=")
        .append(bucketSize);
  }
Assists the toString method in reporting the contents of this message

@see PartitionMessage#toString()
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/CreateBucketMessage.java