From 1403006b6569edecb5df903c72b2f947b1727ef1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B0=8F=E5=85=BD=E5=85=BD?= <zhiyan0926@gmail.com>
Date: Sun, 1 Jun 2025 17:50:59 +0000
Subject: [PATCH] fix: Missing null return type

---
 packages/core/src/types-hoist/options.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/src/types-hoist/options.ts b/packages/core/src/types-hoist/options.ts
index 09dab550be4c..04ec1d25ef17 100644
--- a/packages/core/src/types-hoist/options.ts
+++ b/packages/core/src/types-hoist/options.ts
@@ -365,7 +365,7 @@ export interface ClientOptions<TO extends BaseTransportOptions = BaseTransportOp
    *
    * @returns The modified span payload that will be sent.
    */
-  beforeSendSpan?: (span: SpanJSON) => SpanJSON;
+  beforeSendSpan?: (span: SpanJSON) => SpanJSON | null;
 
   /**
    * An event-processing callback for transaction events, guaranteed to be invoked after all other event