From 0e2ddee324dbaf5243ce6cfa8b43041295a99bca Mon Sep 17 00:00:00 2001
From: Jan Van Ryckeghem <jan.van.ryckeghem@aclvb.be>
Date: Fri, 31 Mar 2017 14:30:15 +0200
Subject: [PATCH] All VisJS config options are optional.
 http://visjs.org/docs/timeline/#Configuration_Options

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

diff --git a/types/vis/index.d.ts b/types/vis/index.d.ts
index e4f8fe0dfd..1167c6db6a 100644
--- a/types/vis/index.d.ts
+++ b/types/vis/index.d.ts
@@ -180,7 +180,7 @@ interface TimelineOptions {
   onRemoveGroup?(): void; // TODO
   order?(): void; // TODO
   orientation?: TimelineOptionsOrientationType;
-  rollingMode: boolean;
+  rollingMode?: boolean;
   selectable?: boolean;
   showCurrentTime?: boolean;
   showMajorLabels?: boolean;