@Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("BatchDeleteRequest[");
    for (BatchDeletePartitionRequestInfo partitionRequestInfo : batchDeletePartitionRequestInfos) {
      sb.append(partitionRequestInfo.toString());
    }
    sb.append(", ").append("ClientId=").append(clientId);
    sb.append(", ").append("CorrelationId=").append(correlationId);
    sb.append(", ").append("Version=").append(CURRENT_VERSION);
    sb.append("]");
    return sb.toString();
  }
Gets the deletion time in ms
@return the deletion time in ms
ambry-protocol/src/main/java/com/github/ambry/protocol/BatchDeleteRequest.java