code: @Override
    protected FileBasedSource<KV<K, V>> createForSubrangeOfFile(Metadata fileMetadata, long start,
        long end) {
      LOG.debug("Creating source for subrange: " + start + "-" + end);
      return new SequenceFileSource<>(fileMetadata,
          start, end,
          keyClass,
          keySerializationClass, valueClass,
          valueSerializationClass,
          getMinBundleSize(),
          coder
      );
    }
docs: {@inheritDoc}