public void setApproximateUniqueCount(Long approximateUniqueCount) {
        this.approximateUniqueCount = approximateUniqueCount;
    }
<p>
An approximate count of the unique contributors found by this rule in this time period.
</p>

@param approximateUniqueCount
       An approximate count of the unique contributors found by this rule in this time period.
aws-java-sdk-cloudwatch/src/main/java/com/amazonaws/services/cloudwatch/model/GetInsightRuleReportResult.java