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<title>[61299] trunk/src/wp-includes: Docs: Update various class `@var` tags to indicate nullability.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/61299">61299</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/61299","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>westonruter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2025-11-25 01:58:14 +0000 (Tue, 25 Nov 2025)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Docs: Update various class `@var` tags to indicate nullability.
This updates various `@var` tags on class properties to correctly indicate that the props may be `null` or unset:
* `WP_Dependencies::$all_queued_deps` is nullable by both `::enqueue()` and `::dequeue`. Also, the types of the keys and values are specified.
* `WP_Duotone::$global_styles_presets` and `::$global_styles_block_names` start off unset and are only initialized by static classes.
* `WP_Query::init()` and `WP_Rewrite::init()` are public methods that `unset()`s many class props.
* `WP_Theme::cache_delete()` sets many props to `null`.
Developed in https://github.com/WordPress/wordpress-develop/pull/8953
Props justlevine, westonruter.
See <a href="https://core.trac.wordpress.org/ticket/64238">#64238</a>, <a href="https://core.trac.wordpress.org/ticket/64224">#64224</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswpdependenciesphp">trunk/src/wp-includes/class-wp-dependencies.php</a></li>
<li><a href="#trunksrcwpincludesclasswpduotonephp">trunk/src/wp-includes/class-wp-duotone.php</a></li>
<li><a href="#trunksrcwpincludesclasswpqueryphp">trunk/src/wp-includes/class-wp-query.php</a></li>
<li><a href="#trunksrcwpincludesclasswprewritephp">trunk/src/wp-includes/class-wp-rewrite.php</a></li>
<li><a href="#trunksrcwpincludesclasswpthemephp">trunk/src/wp-includes/class-wp-theme.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesclasswpdependenciesphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-dependencies.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-dependencies.php 2025-11-25 01:32:39 UTC (rev 61298)
+++ trunk/src/wp-includes/class-wp-dependencies.php 2025-11-25 01:58:14 UTC (rev 61299)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -91,7 +91,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 5.4.0
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var array
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?array<string, true>
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $all_queued_deps;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpincludesclasswpduotonephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-duotone.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-duotone.php 2025-11-25 01:32:39 UTC (rev 61298)
+++ trunk/src/wp-includes/class-wp-duotone.php 2025-11-25 01:58:14 UTC (rev 61299)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -52,7 +52,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.3.0
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var array
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?array
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private static $global_styles_block_names;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -76,7 +76,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.3.0
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var array
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?array
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private static $global_styles_presets;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpincludesclasswpqueryphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-query.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-query.php 2025-11-25 01:32:39 UTC (rev 61298)
+++ trunk/src/wp-includes/class-wp-query.php 2025-11-25 01:58:14 UTC (rev 61299)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -22,7 +22,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Query vars set by the user.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var array
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?array
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $query;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -72,7 +72,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * The ID of the queried object.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var int
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?int
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $queried_object_id;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -80,7 +80,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * SQL for the database query.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.0.1
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $request;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -88,7 +88,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Array of post objects or post IDs.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var WP_Post[]|int[]
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var WP_Post[]|int[]|null
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $posts;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -139,7 +139,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * The list of comments for current post.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.2.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var WP_Comment[]
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?WP_Comment[]
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $comments;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -163,7 +163,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Current comment object.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 2.2.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var WP_Comment
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?WP_Comment
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $comment;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -466,7 +466,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Cached list of search stopwords.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.7.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var array
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?array
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $stopwords;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpincludesclasswprewritephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-rewrite.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-rewrite.php 2025-11-25 01:32:39 UTC (rev 61298)
+++ trunk/src/wp-includes/class-wp-rewrite.php 2025-11-25 01:58:14 UTC (rev 61299)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -52,7 +52,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Permalink structure for author archives.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $author_structure;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -60,7 +60,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Permalink structure for date archives.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $date_structure;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -68,7 +68,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Permalink structure for pages.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $page_structure;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -84,7 +84,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Permalink structure for searches.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $search_structure;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -124,7 +124,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Comments feed permalink structure.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $comment_feed_structure;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -132,7 +132,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Feed request permalink structure.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 1.5.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public $feed_structure;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpincludesclasswpthemephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-theme.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-theme.php 2025-11-25 01:32:39 UTC (rev 61298)
+++ trunk/src/wp-includes/class-wp-theme.php 2025-11-25 01:58:14 UTC (rev 61299)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -114,7 +114,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Header data from the theme's style.css file after being sanitized.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var array
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?array
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $headers_sanitized;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -122,7 +122,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Is this theme a block theme.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.2.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var bool
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?bool
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $block_theme;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -132,7 +132,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Cached due to sorting functions running over the translated name.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $name_translated;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -140,7 +140,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Errors encountered when initializing the theme.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var WP_Error
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?WP_Error
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $errors;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -162,7 +162,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Otherwise, 'template' is the same as 'stylesheet'.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $template;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -170,7 +170,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * A reference to the parent theme, in the case of a child theme.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var WP_Theme
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?WP_Theme
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $parent;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -178,7 +178,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * URL to the theme root, usually an absolute URL to wp-content/themes
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $theme_root_uri;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -186,7 +186,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Flag for whether the theme's textdomain is loaded.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var bool
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?bool
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $textdomain_loaded;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -202,7 +202,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Block template folders.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.4.0
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @var string[]
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @var ?string[]
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> private $block_template_folders;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre>
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