--- a/wp/wp-includes/class-wp-object-cache.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/class-wp-object-cache.php	Wed Sep 21 18:19:35 2022 +0200
@@ -170,7 +170,7 @@
 	 *
 	 * @since 3.0.0
 	 *
-	 * @param array $groups List of groups that are global.
+	 * @param string|string[] $groups List of groups that are global.
 	 */
 	public function add_global_groups( $groups ) {
 		$groups = (array) $groups;