# ChatCompletionStreamResponseDelta
## Properties
**content** | Option<**String**> | The contents of the chunk message. | [optional]
**function_call** | Option<[**models::ChatCompletionStreamResponseDeltaFunctionCall**](ChatCompletionStreamResponseDelta_function_call.md)> | | [optional]
**tool_calls** | Option<[**Vec<models::ChatCompletionMessageToolCallChunk>**](ChatCompletionMessageToolCallChunk.md)> | | [optional]
**role** | Option<**String**> | The role of the author of this message. | [optional]
**refusal** | Option<**String**> | The refusal message generated by the model. | [optional]
[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)