public ProcessingJobStepMetadata withArn(String arn) {
        setArn(arn);
        return this;
    }
<p>
The Amazon Resource Name (ARN) of the processing job.
</p>

@param arn
       The Amazon Resource Name (ARN) of the processing job.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-sagemaker/src/main/java/com/amazonaws/services/sagemaker/model/ProcessingJobStepMetadata.java