foreach my $transaction (@{ $self->transactions }) {
$transaction->{bank_account} = $self->bank_accounts->{ make_bank_account_idx($transaction->{local_bank_code}, $transaction->{local_account_number}) };
foreach my $transaction (@{ $self->transactions }) {
$transaction->{bank_account} = $self->bank_accounts->{ make_bank_account_idx($transaction->{local_bank_code}, $transaction->{local_account_number}) };