From f57ff453de489853e8e37a644ff1fa6d0c6907e9 Mon Sep 17 00:00:00 2001
From: Michael Dombrowski <mikepi3.14@gmail.com>
Date: Mon, 2 Apr 2018 21:25:27 -0400
Subject: [PATCH] Allow Edge arrows from to be left out of edge options

network.setOptions({edges: {arrows: {to: true}}}); should be accepted since it works properly in vis, but previous @types/vis will fail type-checking.
---
 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 c0b33b27aa..44ab171de4 100644
--- a/types/vis/index.d.ts
+++ b/types/vis/index.d.ts
@@ -1861,7 +1861,7 @@ export interface EdgeOptions {
       enabled?: boolean,
       scaleFactor?: number,
     },
-    from: boolean | {
+    from?: boolean | {
       enabled?: boolean,
       scaleFactor?: number,
     }