| Name | Type | Description | Notes |
|---|---|---|---|
| brand | string | Card brand. | [optional] |
| expiry_month | decimal | One or two digit expiration month (1-12) of the credit card. | [optional] |
| expiry_year | decimal | Two- or four-digit number representing the card's expiration year. | [optional] |
| last_4 | string | The last four digits of the card number. | [optional] [readonly] |