# UserMessageItem
## Properties
**id** | **String** | Identifier of the thread item. |
**object** | **String** | Type discriminator that is always `chatkit.thread_item`. |
**created_at** | **i32** | Unix timestamp (in seconds) for when the item was created. |
**thread_id** | **String** | Identifier of the parent thread. |
**r#type** | **String** | |
**content** | [**Vec<models::UserMessageItemContentInner>**](UserMessageItem_content_inner.md) | Ordered content elements supplied by the user. |
**attachments** | [**Vec<models::Attachment>**](Attachment.md) | Attachments associated with the user message. Defaults to an empty list. |
**inference_options** | Option<[**models::InferenceOptions**](InferenceOptions.md)> | |
[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)