public String getBillingPeriod() {
        return this.billingPeriod;
    }
<p>
The billing period for which the pricing rule associations are to be listed.
</p>

@return The billing period for which the pricing rule associations are to be listed.
aws-java-sdk-billingconductor/src/main/java/com/amazonaws/services/billingconductor/model/ListPricingRulesAssociatedToPricingPlanRequest.java