From b69e04a7f23512b7f2dd485aa7ab9454f77a52e3 Mon Sep 17 00:00:00 2001
From: Tobias Schultze <webmaster@tubo-world.de>
Date: Sat, 24 Apr 2021 00:39:10 +0200
Subject: [PATCH] XmlSerializationVisitor::visitArray returns void which
 violates the interface

---
 src/Handler/IteratorHandler.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Handler/IteratorHandler.php b/src/Handler/IteratorHandler.php
index faeaa15b4..cdc1e8515 100644
--- a/src/Handler/IteratorHandler.php
+++ b/src/Handler/IteratorHandler.php
@@ -77,14 +77,14 @@ public static function getSubscribingMethods()
     }
 
     /**
-     * @return array|\ArrayObject
+     * @return array|\ArrayObject|null
      */
     public function serializeIterable(
         SerializationVisitorInterface $visitor,
         iterable $iterable,
         array $type,
         SerializationContext $context
-    ): iterable {
+    ): ?iterable {
         $type['name'] = 'array';
 
         $context->stopVisiting($iterable);