public void setNumNodeLabels(Long numNodeLabels) {
        this.numNodeLabels = numNodeLabels;
    }
<p>
The number of distinct node labels in the graph.
</p>

@param numNodeLabels
       The number of distinct node labels in the graph.
aws-java-sdk-neptunedata/src/main/java/com/amazonaws/services/neptunedata/model/PropertygraphSummary.java