From 8cf729e74487d18240dfae9d8bb5bea2586d0003 Mon Sep 17 00:00:00 2001
From: Andy Postnikov <apostnikov@gmail.com>
Date: Tue, 23 Jul 2024 02:16:47 +0200
Subject: [PATCH] PHP 8.4 compatibility: implicitly nullable parameter
 declarations deprecated

Ref https://github.com/drush-ops/drush/issues/6069
---
 src/State/StateHelper.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/State/StateHelper.php b/src/State/StateHelper.php
index 8d68136..44d5600 100644
--- a/src/State/StateHelper.php
+++ b/src/State/StateHelper.php
@@ -17,7 +17,7 @@ class StateHelper
      * @param OutputInterface $output
      * @return State
      */
-    public static function injectIntoCallbackObject($callback, InputInterface $input, OutputInterface $output = null)
+    public static function injectIntoCallbackObject($callback, InputInterface $input, ?OutputInterface $output = null)
     {
         return static::inject(static::recoverCallbackObject($callback), $input, $output);
     }
@@ -29,7 +29,7 @@ public static function injectIntoCallbackObject($callback, InputInterface $input
      * @param OutputInterface $output
      * @return State
      */
-    public static function inject($target, InputInterface $input, OutputInterface $output = null)
+    public static function inject($target, InputInterface $input, ?OutputInterface $output = null)
     {
         // Do not allow injection unless the target can save its state
         if (!$target || !($target instanceof SavableState)) {