流式调用工作流，event None没有传出来，直接处理成了None，很奇怪的处理方式

[freshman-0ne]

def _workflow_stream_handler(data: Dict[str, str], raw_response: httpx.Response) -> Optional[WorkflowEvent]:
    id = int(data["id"])
    event = data["event"]
    event_data = data["data"]  # type: str
    if event == WorkflowEventType.DONE:
        return  None

    elif event == WorkflowEventType.MESSAGE:
        return WorkflowEvent(
            id=id,
            event=event,
            message=WorkflowEventMessage.model_validate_json(event_data),
        )
    elif event == WorkflowEventType.ERROR:
        return WorkflowEvent(id=id, event=event, error=WorkflowEventError.model_validate_json(event_data))
    elif event == WorkflowEventType.INTERRUPT:
        return WorkflowEvent(
            id=id,
            event=event,
            interrupt=WorkflowEventInterrupt.model_validate_json(event_data),
        )
    else:
        return WorkflowEvent(id=id, event=WorkflowEventType.UNKNOWN, unknown=data)

中的这行

 if event == WorkflowEventType.DONE:
        return  None

[chyroc]

请问你需要这个 done 做什么处理呢

[freshman-0ne]

做日志分析
done里面是包含debug_url的，通过这个可以方便拿到调试url。否则就不知道具体的是哪个工作流或Agent的日志