diff --git a/core/lib/Drupal/Core/Config/Schema/ArrayElement.php b/core/lib/Drupal/Core/Config/Schema/ArrayElement.php
index 2b22271..f4aa3b9 100644
--- a/core/lib/Drupal/Core/Config/Schema/ArrayElement.php
+++ b/core/lib/Drupal/Core/Config/Schema/ArrayElement.php
@@ -121,10 +121,14 @@ public function getIterator() {
     return new \ArrayIterator($this->getElements());
   }
 
+
   /**
-   * @inheritdoc
+   * Gets the typed configuration manager.
+   *
+   * @return \Drupal\Core\Config\TypedConfigManagerInterface
+   *   The typed configuration manager.
    */
-  public function getTypedConfigManager() {
+  protected function getTypedConfigManager() {
     if ($this->typedDataManager instanceof TypedConfigManagerInterface) {
       return $this->typedDataManager;
     }
diff --git a/core/lib/Drupal/Core/Config/Schema/TypedConfigInterface.php b/core/lib/Drupal/Core/Config/Schema/TypedConfigInterface.php
index 0b5ea30..22ffd78 100644
--- a/core/lib/Drupal/Core/Config/Schema/TypedConfigInterface.php
+++ b/core/lib/Drupal/Core/Config/Schema/TypedConfigInterface.php
@@ -61,12 +61,4 @@ public function get($name);
    */
   public function toArray();
 
-  /**
-   * Gets the typed configuration manager.
-   *
-   * @return \Drupal\Core\Config\TypedConfigManagerInterface
-   *   The typed configuration manager.
-   */
-  public function getTypedConfigManager();
-
 }