public void setBillingPeriod(String billingPeriod) {
        this.billingPeriod = billingPeriod;
    }
<p>
The pricing plan billing period for which associations will be listed.
</p>

@param billingPeriod
       The pricing plan billing period for which associations will be listed.
aws-java-sdk-billingconductor/src/main/java/com/amazonaws/services/billingconductor/model/ListPricingPlansAssociatedWithPricingRuleRequest.java