使用Python将云语音API的结果导出到JSON文件

I am trying to convert an audio file to text in an Indian language via Google Speech API. The API returns an object of the type "google.cloud.speech_v1.types.SpeechRecognitionAlternative". I am trying to export the result to .json file. I am very new to python. This is the first project I am doing in python.I am trying to convert an audio file to text in