From 0b64141d8c13fc8a35f4b368dbe2820b4d23f52f Mon Sep 17 00:00:00 2001
From: Brent Shaffer <betterbrent@google.com>
Date: Mon, 9 Oct 2023 16:22:33 -0700
Subject: [PATCH] fix phpstan one more time

---
 src/AuthTokenCache.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/AuthTokenCache.php b/src/AuthTokenCache.php
index 1f7164faf..b551088f8 100644
--- a/src/AuthTokenCache.php
+++ b/src/AuthTokenCache.php
@@ -75,5 +75,8 @@ protected function getCacheKeyFromAuthUri(string $authUri = null): string
             : $this->getCacheKey();
     }
 
+    /**
+     * @return string
+     */
     abstract protected function getCacheKey();
 }