# ReceiveMessageRequestAttachmentsInner
## Properties
**id** | **String** | The ID of the attachment |
**r#type** | **String** | The mime-type of the attachment |
**name** | Option<**String**> | The name of the attachment | [optional]
**size** | Option<**f32**> | The size of the attachment | [optional]
**url** | **String** | A URL to the file |
**preview_url** | Option<**String**> | A URL to a preview picture of the file | [optional]
**link_expires** | Option<**bool**> | If true, it will use the getMessageById endpoint for fetching updated attachment's urls. Find out more [here](https://pipedrive.readme.io/docs/implementing-messaging-app-extension) | [optional][default to false]
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