From eabee0a4bd675100546e254b5404112860461426 Mon Sep 17 00:00:00 2001
From: Mihail Bodrov <bodrovmiha@yandex.ru>
Date: Tue, 15 Oct 2019 23:21:11 +0300
Subject: [PATCH] Use correct array type for Object.keys

---
 src/lib/es5.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
index 1be8d331a6ff7..292d0d2f6c9b0 100644
--- a/src/lib/es5.d.ts
+++ b/src/lib/es5.d.ts
@@ -238,7 +238,7 @@ interface ObjectConstructor {
      * Returns the names of the enumerable string properties and methods of an object.
      * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
      */
-    keys(o: object): string[];
+    keys<T extends object>(o: T): Array<Extract<keyof T, string>>;
 }
 
 /**