@WorkerThread
  public static LottieResult<LottieComposition> fromJsonInputStreamSync(InputStream stream, @Nullable String cacheKey) {
    return fromJsonInputStreamSync(stream, cacheKey, true);
  }
Return a LottieComposition for the given InputStream to json.
lottie/src/main/java/com/airbnb/lottie/LottieCompositionFactory.java