select depend by another select option

public static function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Select::make('car_brand_id')
                    ->reactive()
                    ->relationship('brand', 'name')
                    ->searchable()
                    ->options(Brand::limit(10)->pluck('name', 'id'))
                    ->required()
                    ->afterStateUpdated(fn ($set) => $set('car_model_id', null)),

                Forms\Components\Select::make('car_model_id')
                    ->searchable()
                    ->reactive()
                    ->disabled(function (callable $get) {
                        if (!$get('car_brand_id')) {
                            return true;
                        } else {
                            return false;
                        };
                    })
                    ->required()
                    ->options(function (callable $get) {
                        $brand = Brand::find($get('car_brand_id'));

                        if (!$brand) {
                            return CarModel::limit(10)->pluck('name', 'id');
                        }

                        return $brand->models->pluck('name', 'id');
                    }),

                Forms\Components\TextInput::make('name')
                    ->required()
                    ->unique(Type::class, 'name')
                    ->columnSpan(2),
            ])->columns(2);
    }