return insertionOrder;
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // used only from suite
  @AndroidIncompatible
  public static class SampleLongs extends SampleElements<Long> {
    public SampleLongs() {
      super(1L << 31, 1L << 33, 1L << 36, 1L << 40, 1L << 45);
    }
  }