public PerformanceInsightsMetricDimensionGroup withGroup(String group) {
        setGroup(group);
        return this;
    }
<p>
The available dimension groups for Performance Insights metric type.
</p>

@param group
       The available dimension groups for Performance Insights metric type.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/PerformanceInsightsMetricDimensionGroup.java