presto-orc/src/main/java/io/prestosql/orc/stream/OrcInputStream.java/OrcInputStream/toString
class OrcInputStream:    @Override
    public String toString()
    {
        return toStringHelper(this)
                .add("source", chunkLoader)
                .add("uncompressedOffset", current == null ? null : current.position())
                .toString();
    }