POUND,
    YEN
  }

  private enum Country {
    CANADA,
    CHILE,
    JAPAN,
    SWITZERLAND,
    UK
  }

  @AndroidIncompatible // test-suite builders
  public static final class EnumBiMapGenerator implements TestBiMapGenerator<Country, Currency> {
    @SuppressWarnings("unchecked")
    @Override
    public BiMap<Country, Currency> create(Object... entries) {