class RBMBackedTimestampSet implements TimestampSet {

    @Override
    public long getNumberOfTimestamps() {
        return rbm.getCardinality();
    }

    public  RBMBackedTimestampSet(final TimeBucket timeBucket);
    public  RBMBackedTimestampSet(final TimeBucket timeBucket, final Instant... instants);

}