From dd09ab28f3cc99884e9376012abfa2be8e0736f5 Mon Sep 17 00:00:00 2001
From: Franklin Yu <franklinyu@hotmail.com>
Date: Tue, 4 Jul 2017 18:14:11 -0400
Subject: [PATCH] [gapi.auth2] mark a parameter as optional

According to the [documentation][], this parameter is optional.

[documentation]: https://developers.google.com/identity/sign-in/web/reference#googleauthgrantofflineaccessoptions
---
 types/gapi.auth2/index.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/gapi.auth2/index.d.ts b/types/gapi.auth2/index.d.ts
index 04dfe32c2d..6e9e5c4199 100644
--- a/types/gapi.auth2/index.d.ts
+++ b/types/gapi.auth2/index.d.ts
@@ -47,7 +47,7 @@ declare namespace gapi.auth2 {
     /**
      * Get permission from the user to access the specified scopes offline.
      */
-    grantOfflineAccess(options: {
+    grantOfflineAccess(options?: {
       scope?: string;
       prompt?: "select_account" | "consent";
       app_package_name?: string;