| Name | Type | Description | Notes |
|---|---|---|---|
| filename | String | The name of the attachment normally taken from the filename. You should not include the filename path as appropriate. | |
| mime_type | String | The mime type of the attachment as defined in RFC 9110. Currently only `application/pdf` is supported. | |
| data | String | base64 encoding of the file if less than 32kb in size. | [optional] |
| name | String | A name for the file to identify it to the card holder when it is displayed in the payment form. For example Invoice, Statement. | [optional] |
| retention | Number | The retention period in days of the attachment. Defaults to 180 days. | [optional] |