public void setBillingGroupCostReports(java.util.Collection<BillingGroupCostReportElement> billingGroupCostReports) {
        if (billingGroupCostReports == null) {
            this.billingGroupCostReports = null;
            return;
        }

        this.billingGroupCostReports = new java.util.ArrayList<BillingGroupCostReportElement>(billingGroupCostReports);
    }
<p>
A list of <code>BillingGroupCostReportElement</code> retrieved.
</p>

@param billingGroupCostReports
       A list of <code>BillingGroupCostReportElement</code> retrieved.
aws-java-sdk-billingconductor/src/main/java/com/amazonaws/services/billingconductor/model/ListBillingGroupCostReportsResult.java