The customer payment in-memory driver to mock the customer payment backend service.
@inheritdoc
| Name | Type | Description | 
|---|---|---|
| list | Observable< DaffCustomerPayment[]> | Lists the customer's payments. | 
| get | Observable< DaffCustomerPayment> | Get the specified payment. | 
| update | Observable< DaffCustomerPayment[]> | Update the passed payment. | 
| add | Observable< DaffCustomerPayment[]> | Adds the passed payment. | 
| delete | Observable< DaffCustomerPayment[]> | Deletes the specified payment. |