@WorkerThread
  public static LottieResult<LottieComposition> fromUrlSync(Context context, String url) {
    return fromUrlSync(context, url, url);
  }
Fetch an animation from an http url. Once it is downloaded once, Lottie will cache the file to disk for
future use. Because of this, you may call `fromUrl` ahead of time to warm the cache if you think you
might need an animation in the future.
lottie/src/main/java/com/airbnb/lottie/LottieCompositionFactory.java