From 33441019bd03e3ca868450e9bb793ae5bf9538bd Mon Sep 17 00:00:00 2001
From: Akihito Koriyama <akihito.koriyama@gmail.com>
Date: Mon, 9 Dec 2024 16:04:40 +0900
Subject: [PATCH] Update demo/src/BillingService.php

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
---
 demo/src/BillingService.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/demo/src/BillingService.php b/demo/src/BillingService.php
index d65a91f..05f743e 100644
--- a/demo/src/BillingService.php
+++ b/demo/src/BillingService.php
@@ -4,8 +4,16 @@
 
 namespace Demo;
 
+/**
+ * Service interface for handling billing operations
+ */
 interface BillingService
 {
+    /**
+     * Charges an order
+     *
+     * @return string The charge confirmation message
+     */
     #[WeekendBlock]
-    public function chargeOrder();
+    public function chargeOrder(): string;
 }