Must AsHtmlString, AsStringable and AsUri casts implement SerializesCastableAttributes?

[vaites]

If a model with an url attribute uses the Illuminate\Database\Eloquent\Casts\AsUri cast, it can't be used in a Livewire component like a Filament form, because this error is thrown: Property type not supported in Livewire for property.

Adding a serialize method to the cast class to serialize to string solves the problem:

class AsUri implements Castable
{
    public static function castUsing(array $arguments)
    {
        return new class implements CastsAttributes, SerializesCastableAttributes
        {
            public function get($model, $key, $value, $attributes)
            {
                return isset($value) ? new Uri($value) : null;
            }

            public function set($model, $key, $value, $attributes)
            {
                return isset($value) ? (string) $value : null;
            }

            public function serialize($model, $key, $value, $attributes)
            {
                return isset($value) ? (string) $value : null;
            }
        };
    }
}

So, must must AsHtmlString, AsStringable and AsUri casts implement SerializesCastableAttributes?. Don't know if this can introduce any kind of issue...