[This sample](https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/dialogflow/detect_intent_stream.py) requires restarting the generator once results start streaming in. See discussion [here](https://www.googlecloudcommunity.com/gc/AI-ML/Dialogflow-ES-Not-receiving-response-query-result-information-in/m-p/631966#M2846).