# MessageDeltaObjectDelta
## Properties
**role** | Option<**String**> | The entity that produced the message. One of `user` or `assistant`. | [optional]
**content** | Option<[**Vec<models::MessageDeltaObjectDeltaContentInner>**](MessageDeltaObject_delta_content_inner.md)> | The content of the message in array of text and/or images. | [optional]
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