CodeArno

#include "riegeli_s3_writer.h"
#include "riegeli/records/record_writer.h"

void foo() {
  riegeli::RecordWriterBase::Options riegeli_options;
  riegeli_options.set_zstd(-4);
  riegeli_options.set_parallelism(10);
  /* This works:
  auto writer = std::make_unique<riegeli::RecordWriter<riegeli::FdWriter<>>>(
      std::forward_as_tuple(filename, O_WRONLY | O_CREAT | O_TRUNC),