public ReferenceItem withReferenceArn(String referenceArn) {
        setReferenceArn(referenceArn);
        return this;
    }
<p>
The reference's ARN.
</p>

@param referenceArn
       The reference's ARN.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-omics/src/main/java/com/amazonaws/services/omics/model/ReferenceItem.java