Typo in documentation

This method from AbstractQuery accepts constants from ClassMetadata rather than string

docs/en/reference/dql-doctrine-query-language.rst

@@ -1363,7 +1363,7 @@ can mark a many-to-one or one-to-one association as fetched temporarily to batch
 
     <?php
     $query = $em->createQuery("SELECT u FROM MyProject\User u");
-    $query->setFetchMode("MyProject\User", "address", "EAGER");
+    $query->setFetchMode("MyProject\User", "address", Doctrine\ORM\Mapping\ClassMetadata\FETCH_EAGER);
     $query->execute();
 
 Given that there are 10 users and corresponding addresses in the database the executed queries will look something like: