From 3b76a9b77257d33f595e0a303c682661251c6686 Mon Sep 17 00:00:00 2001
From: Simon Podlipsky <simon@podlipsky.net>
Date: Sat, 27 Apr 2024 22:45:59 +0200
Subject: [PATCH] Update src/Psl/Iter/last_key_opt.php

Co-authored-by: Saif Eddin Gmati <29315886+azjezz@users.noreply.github.com>
---
 src/Psl/Iter/last_key_opt.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Psl/Iter/last_key_opt.php b/src/Psl/Iter/last_key_opt.php
index 25551ad8..4e32faa8 100644
--- a/src/Psl/Iter/last_key_opt.php
+++ b/src/Psl/Iter/last_key_opt.php
@@ -17,7 +17,7 @@
  *
  * @return Option<Tk>
  */
-function last_key_opt(iterable $iterable)
+function last_key_opt(iterable $iterable): Option
 {
     $last = Option::none();
     foreach ($iterable as $k => $_) {