Represents a message delta i.e. any changed fields on a message during streaming.
| Name | Type | Description | Notes |
|---|---|---|---|
| id | String | The identifier of the message, which can be referenced in API endpoints. | |
| _object | ObjectEnum | The object type, which is always `thread.message.delta`. | |
| delta | MessageDeltaObjectDelta |
| Name | Value |
|---|---|
| THREAD_MESSAGE_DELTA | "thread.message.delta" |