public void NullifyTrader(int traderId) => ClRepo.NullifyTrader(traderId);
public void CollectPurchases(CommercialLink cl) => ClRepo.CollectPurchases(cl);
public void NullifyClient(int clientId) => ClRepo.NullifyClient(clientId);
public void SeekReferences(CommercialLink cl) => ClRepo.SeekReferences(cl);