public CreateEventBridgeRuleTemplateGroupResult withArn(String arn) {
        setArn(arn);
        return this;
    }
An eventbridge rule template group's ARN (Amazon Resource Name)

@param arn
       An eventbridge rule template group's ARN (Amazon Resource Name)
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-medialive/src/main/java/com/amazonaws/services/medialive/model/CreateEventBridgeRuleTemplateGroupResult.java