Focus on the interface

index.md

@@ -349,16 +349,7 @@ final class DoctrineArticleRepository implements ArticleRepository, ServiceEntit
         $this->entityManager = $registry->getManagerForClass(Article::class);
     }
 
-    public function latestArticles(int $size): iterable
-    {
-        $this->entityManager->createQueryBuilder()
-          ->select('a.*')
-          ->from(Article::class)
-          ->orderBy('a.createdAt', 'DESC')
-          ->setMaxResults($size)
-          ->getQuery()
-          ->getResults();
-    }
+    // your methods…
 }
 ```