ResponseOutputItemDoneEvent

{
    "type": "response.output_item.done",
    "output_index": 0,
    "item": {
        "id": "string",
        "type": "message",
        "role": "assistant",
        "content": [
            {
                "type": "output_text",
                "text": "string",
                "annotations": [
                    {
                        "type": "file_citation",
                        "file_id": "string",
                        "index": 0
                    }
                ]
            }
        ],
        "status": "in_progress"
    }
}