diff --git a/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php b/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php
index 0a45757..9469514 100644
--- a/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php
+++ b/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php
@@ -27,10 +27,10 @@ public function add($key, $value);
   /**
    * Add multiple items to a collection.
    *
-   * For example [[1 => 'a'], [2 => 'b']].
+   * @example [[1 => 'a'], [2 => 'b']].
    *
-   * @param array $map
-   *   An map of keys and values to add.
+   * @param array[] $map
+   *   A map of keys and values to add.
    *
    * @return $this
    */