public WordCloudAggregatedFieldWells withGroupBy(java.util.Collection<DimensionField> groupBy) {
        setGroupBy(groupBy);
        return this;
    }
<p>
The group by field well of a word cloud. Values are grouped by group by fields.
</p>

@param groupBy
       The group by field well of a word cloud. Values are grouped by group by fields.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/WordCloudAggregatedFieldWells.java