private static void putApprovals(ChangeUpdate update, Map<String, Optional<Short>> approvals) {
for (Map.Entry<String, Optional<Short>> e : approvals.entrySet()) {
if (e.getValue().isPresent()) {
update.putApproval(e.getKey(), e.getValue().get());
} else {
update.removeApproval(e.getKey());
}
}
}
