Confusion around how to upload a video to a specific channel

[hamboomger]

I'm trying to upload a video to a specific channel, on which I'm a manager.

This is how the upload code looks right now:

def upload_video(video_file: Path, args: UploadVideoArgs) -> str:
    access_token = _get_access_token()
    credentials = Credentials(access_token)
    youtube_service = build('youtube', 'v3', credentials=credentials)

    request_body = {
        "snippet": {
            "title": args['title'],
            "description": args['description'],
            "tags": args['tags']
        },
        "status": {
            "privacyStatus": "private"  # public, private, or unlisted
        }
    }
    media = MediaFileUpload(video_file.resolve(), chunksize=-1, resumable=True, mimetype="video/mp4")

    request = youtube_service.videos().insert(
        part='snippet,status',
        body=request_body,
        media_body=media)

    response = request.execute()
    print("Video uploaded successfully! Video ID:", response["id"])
    return response["id"]

The upload works without a problem, but it uploads the video to my own channel, instead of the channel that I'm managing. The client_secrets.json file was given to me from the company as well. How can I upload it to a specific channel?