| Name | Type | Description | Notes |
|---|---|---|---|
| brand | string | [optional] | |
| fingerprint | string | A token that uniquely identifies the card info | [optional] |
| card_type | string | The card type. Valid values are: CREDIT, DEBIT, PREPAID. | [optional] |
| last_four | string | [optional] | |
| expiration_year | string | Four-digit expiration year | [optional] |
| expiration_month | string | Two-digit expiration month | [optional] |