@Override
    public String toString() {
        return resources.map(r -> "Autoscaling to " + r).orElse("Don't autoscale") +
               (description.isEmpty() ? "" : ": " + description);
    }
Returns true if no measurements was used in creating this instance.
node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/Autoscaling.java