public void setArn(String arn) {
        this.arn = arn;
    }
<p>
ARN of the stage for which the information is to be retrieved.
</p>

@param arn
       ARN of the stage for which the information is to be retrieved.
aws-java-sdk-ivsrealtime/src/main/java/com/amazonaws/services/ivsrealtime/model/GetStageRequest.java