public void setShrinkPolicy(ShrinkPolicy shrinkPolicy) {
        this.shrinkPolicy = shrinkPolicy;
    }
<p>
Policy for customizing shrink operations.
</p>

@param shrinkPolicy
       Policy for customizing shrink operations.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceGroup.java