# ResponseOutputTextAnnotationAddedEvent
## Properties
**r#type** | **String** | The type of the event. Always 'response.output_text.annotation.added'. |
**item_id** | **String** | The unique identifier of the item to which the annotation is being added. |
**output_index** | **i32** | The index of the output item in the response's output array. |
**content_index** | **i32** | The index of the content part within the output item. |
**annotation_index** | **i32** | The index of the annotation within the content part. |
**sequence_number** | **i32** | The sequence number of this event. |
**annotation** | [**serde_json::Value**](.md) | The annotation object being added. (See annotation schema for details.) |
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