| Name | Type | Description | Notes |
|---|---|---|---|
| upload_id | int | The integer ID of the upload resource being attached | |
| request_id | string | The string ID of the request resource being associated to an upload. Do not include a request_id in the attachment parameters if you are associating a shipment | [optional] |
| shipment_id | string | The string ID of the shipment resource being associated to an upload. Do not include a shipment_id in the attachment parameters if you are associating a shipment | [optional] |