From af41ded271d0b08ea3df1ba8d3169eb7cffc1b7d Mon Sep 17 00:00:00 2001
From: John Reilly <johnny_reilly@hotmail.com>
Date: Thu, 7 Nov 2013 12:16:09 +0000
Subject: [PATCH] Knockout: dateItemAlias is optional

---
 knockout/knockout.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/knockout/knockout.d.ts b/knockout/knockout.d.ts
index 699ad851df..79d0c1737d 100644
--- a/knockout/knockout.d.ts
+++ b/knockout/knockout.d.ts
@@ -123,7 +123,7 @@ interface KnockoutBindingContext {
     $parentContext?: KnockoutBindingContext;
 
     extend(properties: any): any;
-    createChildContext(dataItemOrAccessor: any, dataItemAlias: any, extendCallback?: Function): any;
+    createChildContext(dataItemOrAccessor: any, dataItemAlias?: any, extendCallback?: Function): any;
 }
 
 interface KnockoutBindingHandler {