class TxState implements TransactionState, RelationshipVisitor.Home {

    @VisibleForTesting
    MutableLongDiffSets getOrCreateIndexUpdatesForSeek( Map<ValueTuple, MutableLongDiffSets> updates, ValueTuple values )
    {
        return updates.computeIfAbsent( values, value -> new MutableLongDiffSetsImpl( collectionsFactory ) );
    }

    public  TxState();
    public  TxState( CollectionsFactory collectionsFactory );

}