public String getRoleArn() {
        return this.roleArn;
    }
<p>
The Amazon Resource Name (ARN) of the IAM service role that has permissions to add data to your output Amazon S3
bucket and add metrics to Amazon CloudWatch. For more information, see <a
href="https://docs.aws.amazon.com/personalize/latest/dg/measuring-recommendation-impact.html">Measuring impact of
recommendations</a>.
</p>

@return The Amazon Resource Name (ARN) of the IAM service role that has permissions to add data to your output
        Amazon S3 bucket and add metrics to Amazon CloudWatch. For more information, see <a
        href="https://docs.aws.amazon.com/personalize/latest/dg/measuring-recommendation-impact.html">Measuring
        impact of recommendations</a>.
aws-java-sdk-personalize/src/main/java/com/amazonaws/services/personalize/model/MetricAttributionOutput.java