@JsonProperty(JSON_RETENTION_COUNT_KEY)
  public DatasetBuilder setRetentionCount(Integer retentionCount) {
    this.retentionCount = retentionCount;
    return this;
  }
Set the retention count of the {@link Dataset} to build.
@param retentionCount the retention count to set.
@return the builder.
ambry-api/src/main/java/com/github/ambry/account/DatasetBuilder.java