code: private synchronized Producer<CloseableReference<CloseableImage>> getLocalAssetFetchSequence() {
      if (mLocalAssetFetchSequence == null) {
        LocalAssetFetchProducer localAssetFetchProducer =
            mProducerFactory.newLocalAssetFetchProducer();
        mLocalAssetFetchSequence =
            newBitmapCacheGetToLocalTransformSequence(localAssetFetchProducer);
      }
      return mLocalAssetFetchSequence;
    }
docs: bitmap cache get ->
  background thread hand-off -> multiplex -> bitmap cache -> decode ->
  branch on separate images
  -> exif resize and rotate -> exif thumbnail creation
  -> local image resize and rotate -> add meta data producer -> multiplex -> encoded cache ->
  (webp transcode) -> local asset fetch.