diff --git a/core/lib/Drupal/Core/Entity/EntityTypeBundleInfoInterface.php b/core/lib/Drupal/Core/Entity/EntityTypeBundleInfoInterface.php
index ecb7c44..95170de 100644
--- a/core/lib/Drupal/Core/Entity/EntityTypeBundleInfoInterface.php
+++ b/core/lib/Drupal/Core/Entity/EntityTypeBundleInfoInterface.php
@@ -22,7 +22,9 @@ public function getAllBundleInfo();
    *   The entity type.
    *
    * @return array
-   *   Returns an array of bundle information of an entity type.
+   *   Returns an array of bundle information for an entity type.
+   *   Format $bundles[BUNDLE_TYPE][ID] => [LABEL]
+   *   Example: $bundles['comment']['label']
    */
   public function getBundleInfo($entity_type);