public CompositionSummary withArn(String arn) {
        setArn(arn);
        return this;
    }
<p>
ARN of the Composition resource.
</p>

@param arn
       ARN of the Composition resource.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ivsrealtime/src/main/java/com/amazonaws/services/ivsrealtime/model/CompositionSummary.java