---
title: "ContentPartAddedEvent"
---

Event emitted when a new content part is added to an output item


## Fields

| Field                                                                              | Type                                                                               | Required                                                                           | Description                                                                        |
| ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- |
| `content_index`                                                                    | *int*                                                                              | :heavy_check_mark:                                                                 | N/A                                                                                |
| `item_id`                                                                          | *str*                                                                              | :heavy_check_mark:                                                                 | N/A                                                                                |
| `output_index`                                                                     | *int*                                                                              | :heavy_check_mark:                                                                 | N/A                                                                                |
| `part`                                                                             | [components.ContentPartAddedEventPart](../components/contentpartaddedeventpart.mdx) | :heavy_check_mark:                                                                 | N/A                                                                                |
| `sequence_number`                                                                  | *int*                                                                              | :heavy_check_mark:                                                                 | N/A                                                                                |
| `type`                                                                             | [components.ContentPartAddedEventType](../components/contentpartaddedeventtype.mdx) | :heavy_check_mark:                                                                 | N/A                                                                                |