diff --git a/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php b/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php
index 4624ab3..0a45757 100644
--- a/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php
+++ b/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreSortedSetInterface.php
@@ -27,12 +27,14 @@ public function add($key, $value);
   /**
    * Add multiple items to a collection.
    *
-   * @param array $pairs
-   *   An array of key/value pairs to add.
+   * For example [[1 => 'a'], [2 => 'b']].
+   *
+   * @param array $map
+   *   An map of keys and values to add.
    *
    * @return $this
    */
-  public function addMultiple(array $pairs);
+  public function addMultiple(array $map);
 
   /**
    * Get the highest key in a collection.