public Boolean isCancellable() {
        return this.cancellable;
    }
<p>
<code>True</code> if you are able to cancel your service software version update. <code>False</code> if you are
not able to cancel your service software version.
</p>

@return True</code> if you are able to cancel your service software version update. <code>False
aws-java-sdk-elasticsearch/src/main/java/com/amazonaws/services/elasticsearch/model/ServiceSoftwareOptions.java