| Class | _TemporaryBillData | Undocumented |
| Class | _TemporaryMoneyData | Undocumented |
| Class | _TemporaryStoreCreditData | Undocumented |
| Class | _TemporaryCreditProviderGroupData | Undocumented |
| Class | PaymentListSlave | A basic payment list slave. Each element of this list is a payment |
| Class | BankDataSlave | A simple slave that contains only a hbox with fields to bank name and |
| Class | BillDataSlave | A slave to set payment information of bill payment method. |
| Class | CheckDataSlave | A slave to set payment information of check payment method. |
| Class | BasePaymentMethodSlave | A base payment method slave for Bill and Check methods. |
| Class | CheckMethodSlave | No class docstring; 1/3 methods documented |
| Class | BillMethodSlave | Undocumented |
| Class | _MoneyData | Undocumented |
| Class | _StoreCreditData | Undocumented |
| Class | MoneyMethodSlave | Undocumented |
| Class | StoreCreditMethodSlave | Undocumented |
| Class | CardMethodSlave | A base payment method slave for card and finance methods. |
| Class | _MultipleMethodEditor | A generic editor that attaches a payment method slave in a toplevel |
| Class | MultipleMethodSlave | A base payment method slave for multiple payments. |
| Function | register_payment_slaves | Undocumented |