From 8d24460a89b33e0fb54610de15148402f7fa45c8 Mon Sep 17 00:00:00 2001
From: warisr <waris.r@linecorp.com>
Date: Fri, 20 Sep 2019 12:10:25 +0700
Subject: [PATCH] implementation should be optional parameter

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

diff --git a/src/modes.ts b/src/modes.ts
index 91b629e0a..8318fe6c6 100644
--- a/src/modes.ts
+++ b/src/modes.ts
@@ -46,7 +46,7 @@ export const modes: { [k: string]: InteractionModeFactory } = {
   lazy
 };
 
-export const setInteractionMode = (mode: string, implementation: InteractionModeFactory) => {
+export const setInteractionMode = (mode: string, implementation?: InteractionModeFactory) => {
   setConfig({ mode });
   if (!implementation) {
     return;