From 93252b894f1efd954efb6af4c68d73d70cdf9ac2 Mon Sep 17 00:00:00 2001
From: Guilherme Siani <contact@guilhermesiani.com>
Date: Fri, 16 Jul 2021 21:06:54 -0300
Subject: [PATCH] refactor: add void return type

---
 Structural/Adapter/PaperBook.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Structural/Adapter/PaperBook.php b/Structural/Adapter/PaperBook.php
index f8ad3c4..c9ebf35 100644
--- a/Structural/Adapter/PaperBook.php
+++ b/Structural/Adapter/PaperBook.php
@@ -6,12 +6,12 @@ class PaperBook implements Book
 {
     private int $page;
 
-    public function open()
+    public function open(): void
     {
         $this->page = 1;
     }
 
-    public function turnPage()
+    public function turnPage(): void
     {
         $this->page++;
     }