async def METHOD_NAME(session_id: str, client_session: httpx.ClientSession):
    headers = {'Authorization': f'Bearer {session_id}'}
    userinfo_url = deploy_config.url('auth', '/api/v1alpha/userinfo')
    try:
        return await retry_transient_errors(client_session.get_read_json, userinfo_url, headers=headers)
    except aiohttp.ClientResponseError as err:
        if err.status == 401:
            return None
        raise