# OpenResponsesStreamEventResponseFunctionCallArgumentsDelta

Event emitted when function call arguments are being streamed


## Fields

| Field                                                                                                | Type                                                                                                 | Required                                                                                             | Description                                                                                          |
| ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- |
| `type`                                                                                               | [models.TypeResponseFunctionCallArgumentsDelta](../models/typeresponsefunctioncallargumentsdelta.md) | :heavy_check_mark:                                                                                   | N/A                                                                                                  |
| `item_id`                                                                                            | *str*                                                                                                | :heavy_check_mark:                                                                                   | N/A                                                                                                  |
| `output_index`                                                                                       | *float*                                                                                              | :heavy_check_mark:                                                                                   | N/A                                                                                                  |
| `delta`                                                                                              | *str*                                                                                                | :heavy_check_mark:                                                                                   | N/A                                                                                                  |
| `sequence_number`                                                                                    | *float*                                                                                              | :heavy_check_mark:                                                                                   | N/A                                                                                                  |