public GetAggregateConfigRuleComplianceSummaryRequest withGroupByKey(String groupByKey) {
        setGroupByKey(groupByKey);
        return this;
    }
<p>
Groups the result based on ACCOUNT_ID or AWS_REGION.
</p>

@param groupByKey
       Groups the result based on ACCOUNT_ID or AWS_REGION.
@return Returns a reference to this object so that method calls can be chained together.
@see ConfigRuleComplianceSummaryGroupKey
aws-java-sdk-config/src/main/java/com/amazonaws/services/config/model/GetAggregateConfigRuleComplianceSummaryRequest.java