public void setNextToken(String nextToken) {
        this.nextToken = nextToken;
    }
<p>
A token that can be used to retrieve the next set of results, or <code>null</code> if there are no additional
results.
</p>

@param nextToken
       A token that can be used to retrieve the next set of results, or <code>null</code> if there are no
       additional results.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/ListMetricValuesResult.java