public String getAttribute() {
        return this.attribute;
    }
<p>
The attribute to use to sort the list of versions.
</p>

@return The attribute to use to sort the list of versions.
@see BotVersionSortAttribute
aws-java-sdk-lexmodelsv2/src/main/java/com/amazonaws/services/lexmodelsv2/model/BotVersionSortBy.java