A bank balance for an account.
 private ReconciliationResult Act(DateTime? reconciliationDate = null, BankBalance[] bankBalances = null)
 {
     return this.subject.Reconcile(reconciliationDate ?? ReconcileDate, this.testDataBudget, this.testDataStatement, bankBalances ?? NextReconcileBankBalance);
 }
        private void OnRemoveBankBalanceCommandExecuted(BankBalance bankBalance)
        {
            if (bankBalance == null)
            {
                return;
            }

            BankBalances.Remove(bankBalance);
        }