From 9a5208c4f806175cf7279a0f64d1389c5e79ede5 Mon Sep 17 00:00:00 2001
From: Kozhumyaka Yaroslav <yaroslav.kozhumyaka@domrf.ru>
Date: Tue, 25 Apr 2023 17:06:40 +0300
Subject: [PATCH] [f] compatible with Iterator

---
 Behavioral/Iterator/BookList.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Behavioral/Iterator/BookList.php b/Behavioral/Iterator/BookList.php
index 7726e99..1391b41 100644
--- a/Behavioral/Iterator/BookList.php
+++ b/Behavioral/Iterator/BookList.php
@@ -46,12 +46,12 @@ class BookList implements Countable, Iterator
         return $this->currentIndex;
     }
 
-    public function next()
+    public function next(): void
     {
         $this->currentIndex++;
     }
 
-    public function rewind()
+    public function rewind(): void
     {
         $this->currentIndex = 0;
     }