From e2597851f94d496b4fd6f2a3cd4308a37f0d09c5 Mon Sep 17 00:00:00 2001
From: Kira <Kira@fanruan.com>
Date: Fri, 23 Apr 2021 09:24:54 +0800
Subject: [PATCH] =?UTF-8?q?refactor:=20=E5=A3=B0=E6=98=8E=E8=B0=83?=
 =?UTF-8?q?=E6=95=B4?=
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---
 typescript/core/ob.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/typescript/core/ob.ts b/typescript/core/ob.ts
index 50a80b8d6..9c4e4b947 100644
--- a/typescript/core/ob.ts
+++ b/typescript/core/ob.ts
@@ -71,7 +71,7 @@ export declare class OB {
 
     once(eventName: string, fn: Function): void;
 
-    un(eName: string, fn: Function): void;
+    un(eName: string, fn?: Function): void;
 
     _initRef(): void;