presto-orc/src/main/java/io/prestosql/orc/metadata/OrcMetadataReader.java/OrcMetadataReader/toStream
class OrcMetadataReader:    private static List<Stream> toStream(List<OrcProto.Stream> streams)
    {
        return streams.stream()
                .map(OrcMetadataReader::toStream)
                .collect(toImmutableList());
    }