From 05dbcb55fe989e34b3c60bb1b9caf3a5e88062e5 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Thu, 22 Apr 2021 14:00:00 +0100
Subject: [PATCH] Make the alias private

---
 upgrading-to-drupal-9/slides.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/upgrading-to-drupal-9/slides.rst b/upgrading-to-drupal-9/slides.rst
index 9faf64e..d4e72f6 100644
--- a/upgrading-to-drupal-9/slides.rst
+++ b/upgrading-to-drupal-9/slides.rst
@@ -401,6 +401,7 @@ Fixing autowiring
       services:
     +   Drupal\Core\Messenger\MessengerInterface:
     +     alias: messenger
+    +     private: true
 
         Drupal\simple_message\DisplaySimpleMessage:
           autowire: true