FooReadonly example

yield ['abstract-parent', new ConcreteClass()];

        yield ['private-constructor', PrivateConstructor::create('bar')];

        yield ['php74-serializable', new Php74Serializable()];

        yield ['__unserialize-but-no-__serialize', new __UnserializeButNo__Serialize()];

        yield ['__serialize-but-no-__unserialize', new __SerializeButNo__Unserialize()];

        yield ['unit-enum', [FooUnitEnum::Bar], true];
        yield ['readonly', new FooReadonly('k', 'v')];
    }

    public function testUnicodeDirectionality()
    {
        $this->assertSame('"\0\r\u{202A}\u{202B}\u{202D}\u{202E}\u{2066}\u{2067}\u{2068}\u{202C}\u{2069}\n"', VarExporter::export("\0\r\u{202A}\u{202B}\u{202D}\u{202E}\u{2066}\u{2067}\u{2068}\u{202C}\u{2069}\n"));
    }
}

class MyWakeup
{
    public $sub;