docs: private synchronized Producer<EncodedImage> getBackgroundNetworkFetchToEncodedMemorySequence() {
      if (FrescoSystrace.isTracing()) {
        FrescoSystrace.beginSection(
            "ProducerSequenceFactory#getBackgroundNetworkFetchToEncodedMemorySequence");
      }
      if (mBackgroundNetworkFetchToEncodedMemorySequence == null) {
        if (FrescoSystrace.isTracing()) {
          FrescoSystrace.beginSection(
              "ProducerSequenceFactory#getBackgroundNetworkFetchToEncodedMemorySequence:init");
        }
        // Use hand-off producer to ensure that we don't do any unnecessary work on the UI thread.
        mBackgroundNetworkFetchToEncodedMemorySequence =
            mProducerFactory.newBackgroundThreadHandoffProducer(
                getCommonNetworkFetchToEncodedMemorySequence(), mThreadHandoffProducerQueue);
        if (FrescoSystrace.isTracing()) {
          FrescoSystrace.endSection();
        }
      }
      if (FrescoSystrace.isTracing()) {
        FrescoSystrace.endSection();
      }
      return mBackgroundNetworkFetchToEncodedMemorySequence;
    }