public void setArn(String arn) {
        this.arn = arn;
    }
<p>
The ARN of the specified target for the dead-letter queue.
</p>
<p>
For Amazon Kinesis stream and Amazon DynamoDB stream sources, specify either an Amazon SNS topic or Amazon SQS
queue ARN.
</p>

@param arn
       The ARN of the specified target for the dead-letter queue. </p>
       <p>
       For Amazon Kinesis stream and Amazon DynamoDB stream sources, specify either an Amazon SNS topic or Amazon
       SQS queue ARN.
aws-java-sdk-pipes/src/main/java/com/amazonaws/services/pipes/model/DeadLetterConfig.java