class GcsUtil {

  public void createBucket(String projectId, Bucket bucket) throws IOException {
    createBucket(projectId, bucket, createBackOff(), Sleeper.DEFAULT);
  }

  private  GcsUtil(
      Storage storageClient,
      HttpRequestInitializer httpRequestInitializer,
      ExecutorService executorService,
      @Nullable Integer uploadBufferSizeBytes);

}