| Name | Type | Description | Notes |
|---|---|---|---|
| file | \SplFileObject | For application/JSON protocol, a base64 encoded string may be sent. | |
| purpose | string | The purpose of the uploaded file. | |
| file_name | string | A filename for the file, suitable for saving to a filesystem. | |
| title | string | A user friendly title for the document. | [optional] |
| link_expires_time | \DateTime | Time at which the link expires. | [optional] |