From 38df25eaa63a43b730be5bda55ae9385995dfd0e Mon Sep 17 00:00:00 2001
From: HenryNguyen5 <ngu.henry@hotmail.com>
Date: Mon, 25 Jun 2018 13:29:59 -0400
Subject: [PATCH] Change isBN type return to type guard

---
 types/bn.js/index.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/bn.js/index.d.ts b/types/bn.js/index.d.ts
index 7aa239d205..48f20ba429 100644
--- a/types/bn.js/index.d.ts
+++ b/types/bn.js/index.d.ts
@@ -62,7 +62,7 @@ declare class BN {
     /**
      * @description returns true if the supplied object is a BN.js instance
      */
-    static isBN(b: any): boolean;
+    static isBN(b: any): b is BN;
 
     /**
      * @description  Convert number to red