public void setExpectedVersion(Long expectedVersion) {
        this.expectedVersion = expectedVersion;
    }
<p>
The expected version of the dynamic thing group to delete.
</p>

@param expectedVersion
       The expected version of the dynamic thing group to delete.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/DeleteDynamicThingGroupRequest.java