From 6514b7f08f74e1f4f785ece18cffb2aef1aadd65 Mon Sep 17 00:00:00 2001
From: Remy Vaartjes <remy@xd.nl>
Date: Thu, 29 Jun 2023 16:22:56 +0200
Subject: [PATCH] __serialize must return array 8.1

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

diff --git a/src/ExpressionLanguage.php b/src/ExpressionLanguage.php
index a35cfa5..108fc60 100644
--- a/src/ExpressionLanguage.php
+++ b/src/ExpressionLanguage.php
@@ -43,11 +43,11 @@ function (array $variables, $arg0, $arg1) {
     }
 
     /**
-     * @return null
+     * @return array
      */
     public function __serialize()
     {
-        return null;
+        return [];
     }
 
     /**