public void setModelArn(String modelArn) {
        this.modelArn = modelArn;
    }
<p>
The ARN of the model that the retraining scheduler is attached to.
</p>

@param modelArn
       The ARN of the model that the retraining scheduler is attached to.
aws-java-sdk-lookoutequipment/src/main/java/com/amazonaws/services/lookoutequipment/model/RetrainingSchedulerSummary.java