public PricingRuleListElement withArn(String arn) {
        setArn(arn);
        return this;
    }
<p>
The Amazon Resource Name (ARN) used to uniquely identify a pricing rule.
</p>

@param arn
       The Amazon Resource Name (ARN) used to uniquely identify a pricing rule.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-billingconductor/src/main/java/com/amazonaws/services/billingconductor/model/PricingRuleListElement.java