How to generate medical stream transcribe url in python

I am trying to create a WebSocket URL in the backend (Python) to execute a stream medical transcribe in the frontend. First, I was able to successfully create and execute the stream medical transcribe WebSocket URL in JavaScript by referring to the GitHub example(https://github.com/rochforp/aws-transcribe-medical-demo/blob/master/src/transcribe/utils.js). Trying to create the WebSocket URL in Python by referring to the same, the general transcribe works, but the medical one does not work. Since the signature is the same except for the signature, I think there is a problem with the signature, but the general transcribe is also working normally.

Please provide a solution and an example for this.