From d06ca394b4070d0da39250991a02f1e939b78aab Mon Sep 17 00:00:00 2001
From: Markus Staab <m.staab@complex-it.de>
Date: Fri, 25 Mar 2022 22:35:22 +0100
Subject: [PATCH] Update ImpossibleCheckTypeHelper.php

---
 src/Rules/Comparison/ImpossibleCheckTypeHelper.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Rules/Comparison/ImpossibleCheckTypeHelper.php b/src/Rules/Comparison/ImpossibleCheckTypeHelper.php
index 2869b4a3df7..8a77925320a 100644
--- a/src/Rules/Comparison/ImpossibleCheckTypeHelper.php
+++ b/src/Rules/Comparison/ImpossibleCheckTypeHelper.php
@@ -308,6 +308,11 @@ private function findSpecifiedSureAndSureNotTypes(
 		return null;
 	}
 
+	/**
+	 * @param array<string|int, array{Expr, Type}> $sureOrSureNotTypes
+	 * 
+	 * @return list<Type>
+	 */
 	private function sureUnionTypes(array $sureOrSureNotTypes, Expr $expr): array
 	{
 		$types = [];