Hash a string in python and return a binary result

Question

I'm looking to implement the following secure stream using Wowza Engine.

https://www.wowza.com/docs/how-to-protect-streaming-using-securetoken-in-wowza-streaming-engine

In order to do that I need to produce a sha256 hash of a string in python. When I hash my string using sha256 and call hexdigest I get a hex string as the result.

When I call digest I get a byte array. I'm looking to produce the equivalent of this php code.

$hashstr = hash(‘sha256’, ‘live/definst/test.stream?c7800e7e5afc8c0b&wowzatokenendtime=0&wowzatokenstarttime=0’, true); 

https://www.php.net/manual/en/function.hash.php

The piece I can't quite figure out is the binary return flag in php. From the docs above:

Returns a string containing the calculated message digest as lowercase hexits unless binary is set to true in which case the raw binary representation of the message digest is returned.

My current code:

import base64
import codecs
import hashlib

from datetime import datetime

base_url = 'rtsp://server.domain.com:1935/'
prefix = 'vodTest/_defaultVHost_/sample.mp4?'
secret = 'SECRET_STRING'
wowza_end_time = '1646394821'

def test():
    print(get_rtsp_hash_string())


def get_rtsp_hash_string():
    
    string_to_hash = prefix + '&wowzatokenendtime=' + wowza_end_time + '&' + secret

    return  base64.b64encode(hashlib.sha256(string_to_hash.encode('utf-8')).digest()).decode()

def get_url():
    
    return base_url + prefix + '?' + 'wowzatokenhash=' + get_rtsp_hash_string()

Any suggestions appreciated?

Thanks,

Shawn