Returned when a new content part is added to an assistant message item during response generation.
| Name | Type | Description | Notes |
|---|---|---|---|
| eventId | String | The unique ID of the server event. | |
| type | String | The event type, must be "response.content_part.added". | |
| responseId | String | The ID of the response. | |
| itemId | String | The ID of the item to which the content part was added. | |
| outputIndex | Integer | The index of the output item in the response. | |
| contentIndex | Integer | The index of the content part in the item's content array. | |
| part | RealtimeServerEventResponseContentPartAddedPart |