async def METHOD_NAME(self) -> bool:
    """Check if the observer is running."""
    try:
        timeout = aiohttp.ClientTimeout(total=10)
        async with self.sys_websession.get(
            f"http://{self.sys_docker.network.observer!s}/ping", timeout=timeout
        ) as request:
            if request.status == 200:
                return True
    except (aiohttp.ClientError, asyncio.TimeoutError):
        pass
    return False