| Name | Type | Description | Notes |
|---|---|---|---|
| id | string | The ID of the attachment | |
| type | string | The mime-type of the attachment | |
| name | string | The name of the attachment | [optional] |
| size | float | The size of the attachment | [optional] |
| url | string | A URL to the file | |
| preview_url | string | A URL to a preview picture of the file | [optional] |
| link_expires | bool | If true, it will use the getMessageById endpoint for fetching updated attachment's urls. Find out more here | [optional] [default to false] |