From 956d09bf08c312d66ea52990dfec938c5456dde7 Mon Sep 17 00:00:00 2001
From: Ruud Kamphuis <ruudk@users.noreply.github.com>
Date: Wed, 28 Aug 2024 14:51:36 +0200
Subject: [PATCH] Add conditional return types to `ensureTraversable`

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

diff --git a/src/Extension/CoreExtension.php b/src/Extension/CoreExtension.php
index a58e1e2c9..f2b0c1794 100644
--- a/src/Extension/CoreExtension.php
+++ b/src/Extension/CoreExtension.php
@@ -1280,6 +1280,9 @@ final class CoreExtension extends AbstractExtension
 
     /**
      * @internal
+     * @template TSequence
+     * @param TSequence $seq
+     * @return ($seq is iterable ? TSequence : array{})
      */
     public static function ensureTraversable($seq)
     {