From b0f45cd35f5a15758224bfb414514e4203a30a6c Mon Sep 17 00:00:00 2001
From: Jonathan Treffler <mail@jonathan-treffler.de>
Date: Wed, 29 Sep 2021 11:33:23 +0200
Subject: [PATCH] Update lib/GroupDuplicateChecker.php

Co-authored-by: Carl Schwan <carl@carlschwan.eu>
Signed-off-by: Jonathan Treffler <mail@jonathan-treffler.de>
---
 lib/GroupDuplicateChecker.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/GroupDuplicateChecker.php b/lib/GroupDuplicateChecker.php
index f8dd0cc31..eb4cf6bc7 100644
--- a/lib/GroupDuplicateChecker.php
+++ b/lib/GroupDuplicateChecker.php
@@ -33,7 +33,7 @@ public function __construct(
 		$this->logger = $logger;
 	}
 
-	public function checkForDuplicates($group) {
+	public function checkForDuplicates(string $group): void {
 		$existingGroup = $this->groupManager->get($group);
 		if ($existingGroup !== null) {
 			$reflection = new \ReflectionClass($existingGroup);