From 84b8ab816c296770b7ae94e025bf60702f7aca7a Mon Sep 17 00:00:00 2001
From: tkondo <kd1049@gmail.com>
Date: Wed, 24 Apr 2019 05:27:30 +0900
Subject: [PATCH] Fix iterable SetConstructor interface (#29777)

---
 src/lib/es2015.iterable.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/es2015.iterable.d.ts b/src/lib/es2015.iterable.d.ts
index b679bea14d5..faba45bc518 100644
--- a/src/lib/es2015.iterable.d.ts
+++ b/src/lib/es2015.iterable.d.ts
@@ -177,7 +177,7 @@ interface ReadonlySet<T> {
 }
 
 interface SetConstructor {
-    new <T>(iterable: Iterable<T>): Set<T>;
+    new <T>(iterable?: Iterable<T> | null): Set<T>;
 }
 
 interface WeakSet<T extends object> { }