public java.util.List<String> getDimensions() {
        if (dimensions == null) {
            dimensions = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return dimensions;
    }
<p>
A list of specific dimensions from a dimension group. If this list isn't included, then all of the dimensions in
the group were requested, or are present in the response.
</p>

@return A list of specific dimensions from a dimension group. If this list isn't included, then all of the
        dimensions in the group were requested, or are present in the response.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/PerformanceInsightsMetricDimensionGroup.java