编辑文件：CSSElement.php
<?php declare(strict_types=1); namespace Automattic\WooCommerce\Vendor\Sabberworm\CSS; /** * Represents any entity in the CSS that is encapsulated by a class. * * Its primary purpose is to provide a type for use with `Document::getAllValues()` * when a subset of values from a particular part of the document is required. * * Thus, elements which don't contain `Value`s (such as statement at-rules) don't need to implement this. * * It extends `Renderable` because every element is renderable. */ interface CSSElement extends Renderable {}
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