From 7f78749ee3023608a614b2f595739bcd36acc128 Mon Sep 17 00:00:00 2001
From: Mitermayer Reis <mitermayer.reis@gmail.com>
Date: Mon, 28 Aug 2017 11:06:56 -0700
Subject: [PATCH] Updating param flow type definition (#10558)

---
 src/renderers/native/ReactNativeEventEmitter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/renderers/native/ReactNativeEventEmitter.js b/src/renderers/native/ReactNativeEventEmitter.js
index 4608637561..c90b0b9064 100644
--- a/src/renderers/native/ReactNativeEventEmitter.js
+++ b/src/renderers/native/ReactNativeEventEmitter.js
@@ -100,7 +100,7 @@ var ReactNativeEventEmitter = {
   _receiveRootNodeIDEvent: function(
     rootNodeID: number,
     topLevelType: string,
-    nativeEventParam: Object,
+    nativeEventParam: ?Object,
   ) {
     var nativeEvent = nativeEventParam || EMPTY_NATIVE_EVENT;
     var inst = ReactNativeComponentTree.getInstanceFromNode(rootNodeID);