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<?php namespace App\Modules\Product\Transformer { use App\Modules\Product\Models\ResourceModel; class ResourceTransformer { public function transform(ResourceModel $model) { } } class ColorTransformer extends ResourceTransformer { } } namespace App\Modules\Product\Models { class ResourceModel { } class ColorModel extends ResourceModel { } } namespace { $colorTransformer = new \App\Modules\Product\Transformer\ColorTransformer; $colorModel = new App\Modules\Product\Models\ColorModel; $colorTransformer->transform($colorModel); var_dump($colorModel); var_dump($colorTransformer); }

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