docs: WP_Block_*::get_registered() can return null

Author: justlevine

src/wp-includes/class-wp-block-pattern-categories-registry.php

@@ -107,7 +107,7 @@ public function unregister( $category_name ) {
 	 * @since 5.5.0
 	 *
 	 * @param string $category_name Pattern category name including namespace.
-	 * @return array Registered pattern properties.
+	 * @return array|null Registered pattern properties, or `null` if the pattern category is not registered.
 	 */
 	public function get_registered( $category_name ) {
 		if ( ! $this->is_registered( $category_name ) ) {

src/wp-includes/class-wp-block-patterns-registry.php

@@ -188,7 +188,7 @@ private function get_content( $pattern_name, $outside_init_only = false ) {
 	 * @since 5.5.0
 	 *
 	 * @param string $pattern_name Block pattern name including namespace.
-	 * @return array Registered pattern properties.
+	 * @return array|null Registered pattern properties or `null` if the pattern is not registered.
 	 */
 	public function get_registered( $pattern_name ) {
 		if ( ! $this->is_registered( $pattern_name ) ) {

src/wp-includes/class-wp-block-styles-registry.php

@@ -140,7 +140,7 @@ public function unregister( $block_name, $block_style_name ) {
 	 *
 	 * @param string $block_name       Block type name including namespace.
 	 * @param string $block_style_name Block style name.
-	 * @return array Registered block style properties.
+	 * @return array|null Registered block style properties or `null` if the block style is not registered.
 	 */
 	public function get_registered( $block_name, $block_style_name ) {
 		if ( ! $this->is_registered( $block_name, $block_style_name ) ) {