public EndQuery orderByDesc(Annotation annotation, String fieldName) {
        return new EndQuery(this).orderByDesc(annotation, fieldName);
    }
Order by desc.
https://docs.vespa.ai/en/reference/query-language-reference.html#order-by

@param annotation the annotation
@param fieldName the field name
@return the end query
client/src/main/java/ai/vespa/client/dsl/Query.java