public Cluster withNormalizedInstanceHours(Integer normalizedInstanceHours) {
        setNormalizedInstanceHours(normalizedInstanceHours);
        return this;
    }
<p>
An approximation of the cost of the cluster, represented in m1.small/hours. This value is incremented one time
for every hour an m1.small instance runs. Larger instances are weighted more, so an Amazon EC2 instance that is
roughly four times more expensive would result in the normalized instance hours being incremented by four. This
result is only an approximation and does not reflect the actual billing rate.
</p>

@param normalizedInstanceHours
       An approximation of the cost of the cluster, represented in m1.small/hours. This value is incremented one
       time for every hour an m1.small instance runs. Larger instances are weighted more, so an Amazon EC2
       instance that is roughly four times more expensive would result in the normalized instance hours being
       incremented by four. This result is only an approximation and does not reflect the actual billing rate.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/Cluster.java