docs: public ListBackupsResult withBackupSummaries(BackupSummary... backupSummaries) {
          if (this.backupSummaries == null) {
              setBackupSummaries(new java.util.ArrayList<BackupSummary>(backupSummaries.length));
          }
          for (BackupSummary ele : backupSummaries) {
              this.backupSummaries.add(ele);
          }
          return this;
      }