From c7feff9fe64d4a334be00ab12b30a99a9b7ad6e5 Mon Sep 17 00:00:00 2001
From: Hank GH Chen <372259464@qq.com>
Date: Thu, 18 Dec 2025 21:24:53 +0800
Subject: [PATCH] Add return type to jsonSerialize method

---
 src/AbstractNumber.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/AbstractNumber.php b/src/AbstractNumber.php
index fe53a76..4776922 100644
--- a/src/AbstractNumber.php
+++ b/src/AbstractNumber.php
@@ -544,7 +544,7 @@ public function __toString(): string
     /**
      * Converts the current MadeByBob\Number instance into a string.
      */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return $this->toString();
     }