public String toString() {
    StringBuilder sb = new StringBuilder();
    sb
      .append("FileCopyGetMetaDataResponse[")
      .append("NumberOfLogfiles=").append(numberOfLogfiles)
      .append(", logInfoList").append(logInfos.toString()).append("], ")
      .append("SnapshotId=").append(snapshotId);
    return sb.toString();
  }
Get the size of the response in bytes
ambry-protocol/src/main/java/com/github/ambry/protocol/FileCopyGetMetaDataResponse.java