public boolean isFeatureFlagEnabled(LottieFeatureFlag flag) {
    return lottieFeatureFlags.isFlagEnabled(flag);
  }
Enable the specified feature for this drawable.
<p>
Features guarded by LottieFeatureFlags are experimental or only supported by a subset of API levels.
Please ensure that the animation supported by the enabled feature looks acceptable across all
targeted API levels.
lottie/src/main/java/com/airbnb/lottie/LottieDrawable.java