diff --git a/core/lib/Drupal/Core/Field/FieldDefinition.php b/core/lib/Drupal/Core/Field/FieldDefinition.php
index a7837a0..5ddd9e7 100644
--- a/core/lib/Drupal/Core/Field/FieldDefinition.php
+++ b/core/lib/Drupal/Core/Field/FieldDefinition.php
@@ -550,5 +550,4 @@ public function getUniqueStorageIdentifier() {
     return $this->getTargetEntityTypeId() . '-' . $this->getName();
   }
 
-
 }
diff --git a/core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php b/core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php
index b8961dc..eccb7b8 100644
--- a/core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php
+++ b/core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php
@@ -286,7 +286,8 @@ public function getProvider();
   public function hasCustomStorage();
 
   /**
-   * @todo
+   * Returns the field UUID (Universally Unique Identifier).
+   *
    * @return string
    */
   public function getUniqueStorageIdentifier();
diff --git a/core/modules/field/src/Entity/FieldConfig.php b/core/modules/field/src/Entity/FieldConfig.php
index d77c1a8..82fe1d6 100644
--- a/core/modules/field/src/Entity/FieldConfig.php
+++ b/core/modules/field/src/Entity/FieldConfig.php
@@ -796,7 +796,6 @@ public function getUniqueStorageIdentifier() {
     return $this->uuid();
   }
 
-
   /**
    * Helper to retrieve the field item class.
    */