public RDSDatabaseRecommendedOptionProjectedMetric withRank(Integer rank) {
        setRank(rank);
        return this;
    }
<p>
The rank identifier of the RDS instance recommendation option.
</p>

@param rank
       The rank identifier of the RDS instance recommendation option.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-computeoptimizer/src/main/java/com/amazonaws/services/computeoptimizer/model/RDSDatabaseRecommendedOptionProjectedMetric.java