public DescribeFleetMetricResult withQueryString(String queryString) {
        setQueryString(queryString);
        return this;
    }
<p>
The search query string.
</p>

@param queryString
       The search query string.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/DescribeFleetMetricResult.java