How to get the manifest_url of a video, similar to yt-dlp?

[SuperMechaDeathChrist]

Is your feature request related to a problem? Please describe.
I want to play adaptive streams of youtube videos, that contain both audio and video.

Describe the solution you'd like
Using yt-dlp (a fork based on youtube-dl) i can achieve this by parsing the json with the following code:

import subprocess
import json

u="https://www.youtube.com/watch?v=aqz-KE-bpKQ"

yt_dlp='yt-dlp.exe'

out=subprocess.check_output([yt_dlp, u, '--dump-json'], shell=True, text=True)
out=json.loads(out.strip())
for fi in reversed(out['formats']):
    ext=fi['ext']
    prot=fi['protocol']
    has_drm=fi.get('has_drm')
    manifest_url=fi.get('manifest_url',None)
    res=fi.get('resolution','')
    fps=fi.get('fps',None)
    if manifest_url and prot=='m3u8_native' and ext=='mp4':
        surl=manifest_url

And the stream url surl looks like this:

https://manifest.googlevideo.com/api/manifest/hls_variant/expire/1736819473/ei/sW6FZ4OCN4az2_gPvde6sAI/ip/148.214.94.244/id/6aacfe284f9ba4a4/source/youtube/requiressl/yes/xpc/EgVo2aDSNQ%3D%3D/playback_host/rr1---sn-uvu5a2a5t-bqad.googlevideo.com/met/1736797873%2C/mh/aP/mm/31%2C29/mn/sn-uvu5a2a5t-bqad%2Csn-9gv7zn7e/ms/au%2Crdu/mv/m/mvi/1/pl/24/rms/au%2Cau/tx/51380154/txs/51380152%2C51380153%2C51380154%2C51380155/hfr/1/demuxed/1/tts_caps/1/maudio/1/initcwndbps/2160000/bui/AY2Et-Ph2i0I3cM1e8WXQdBnGhRNJp2zc0H68aNsRV7P5KWkXJ98OeHX5KvNhYvWL6RPPdUlv6bdY21H/spc/9kzgDfPDUUMeCIbHTz0Ap9jdtTnRnDXXVmw0icI60nybhBJTuHSARlU/vprv/1/go/1/rqh/5/mt/1736797518/fvip/3/nvgoi/1/short_key/1/ncsapi/1/keepalive/yes/fexp/51326932%2C51335594%2C51353498%2C51371294/dover/13/itag/0/playlist_type/DVR/sparams/expire%2Cei%2Cip%2Cid%2Csource%2Crequiressl%2Cxpc%2Ctx%2Ctxs%2Chfr%2Cdemuxed%2Ctts_caps%2Cmaudio%2Cbui%2Cspc%2Cvprv%2Cgo%2Crqh%2Citag%2Cplaylist_type/sig/AJfQdSswRgIhANAafFh_eeYaUUFcx7N3r-XhnbjYFjy9zyf6U1KwO8vFAiEA1n090WkYdH47tYK9pBWECZQMv9GZekbztwuKlfW2zhA%3D/lsparams/playback_host%2Cmet%2Cmh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Crms%2Cinitcwndbps/lsig/AGluJ3MwRQIgXxaG784fhjfMQBKkOYS4G7ft5Z_kX-Sme9MqmDJjThUCIQC7h2CZbZQS6ENiw_G3JzledDprwVZUtKTfsQZMC1hyOw%3D%3D/file/index.m3u8?MimeType=video%2Fmp4&ISAdaptive=1

This stream url can be played with vlc, or in kodi with the inputstream.adaptive plugin. It plays as high resolution video with audio, and it appears to be a .m3u8 file.

Describe alternatives you've considered
The stream url I obtain with this method appears to have several parts of an adaptive stream url that I obtain with pytubefix, so i tried reconstructing it but it didn't work. There where some parts that i couldn't find, like hfr, tts_caps, maudio, go, nvgoi, short_key, ncsapi, dover, playlist_type. Also, some parts appear to have a different, format, like the id.

I believe the manifest_url can be obtained or constructed from the watch_html or one of the raw html responses for a Youtube object.

Additional context
I am making a youtube kodi addon, and implementing pytubefix to get adaptive stream urls that include audio would be a game changer in my opinion, because pytubefix is way faster than my current implementation.