public static UParens create(UExpression expression) {
    return new AutoValue_UParens(expression);
  }
@Test
  public void equality() {
    new EqualsTester()
        .addEqualityGroup(UParens.create(ULiteral.longLit(5L)))
        .addEqualityGroup(UParens.create(ULiteral.intLit(5)))
        .addEqualityGroup(UParens.create(UUnary.create(Kind.UNARY_MINUS, ULiteral.intLit(5))))
        .addEqualityGroup(
            UParens.create(UBinary.create(Kind.PLUS, ULiteral.intLit(5), ULiteral.intLit(1))))
        .testEquals();
  }