From 63409f50a31d5314bdb9796a4c3f77f13b7fb1cd Mon Sep 17 00:00:00 2001
From: Application-drop-up <msts.oo0131@gmail.com>
Date: Mon, 26 Jan 2026 23:14:34 +0900
Subject: [PATCH] fix: allow null filename in QR generator

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

diff --git a/src/Generator.php b/src/Generator.php
index 4ada416..18bd1d3 100644
--- a/src/Generator.php
+++ b/src/Generator.php
@@ -166,7 +166,7 @@ public function __call($method, array $arguments)
      * @throws WriterException
      * @throws InvalidArgumentException
      */
-    public function generate(string $text, string $filename = null)
+    public function generate(string $text, ?string $filename = null)
     {
         $qrCode = $this->getWriter($this->getRenderer())->writeString($text, $this->encoding, $this->errorCorrection);