# CreateInboxConversationRequestTemplateCardsInnerHeaderMedia
## Properties
**r#type** | **Type** | Must match the card header's media type. (enum: image, video, document) |
**link** | Option<**String**> | Public URL of the asset to send. Must be reachable without auth. | [optional]
**id** | Option<**String**> | A Meta media id (from the media upload endpoint), as an alternative to link. | [optional]
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