我正在編寫一個 Python 腳本來將一些 JSON 文件輸出到 Azure 上的 Cosmos DB。我的腳本如下所示：import loggingimport uuidimport jsonimport azure.functions as funcdef main(event: func.EventHubEvent, message: func.Out[func.Document]) -> None:    event_body = event.get_body().decode('utf-8')    logging.info('Python event trigger function processed an event item: %s',event_body)    data = {        "value": event_body,        "insertion_time": event_body        }    message.set(func.Document.from_json(json.dumps(data)))輸出是這樣寫的：{    "value": "{\n  \"value\": \"66\",\n  \"insertion_time\": \"2020-06-02T05:50:00+00:00\"\n}",    "insertion_time": "{\n  \"value\": \"66\",\n  \"insertion_time\": \"2020-06-02T05:50:00+00:00\"\n}"  }但是，我希望它是這樣的：{    "value": "66",    "insertion_time": "2020-06-02T05:50:00+00:00"  }我該如何糾正這個問題？