From f7a2010f754f1a6848da59e242da13ec423b0f7f Mon Sep 17 00:00:00 2001
From: Anne Klapwijk <anne.klapwijk@gmail.com>
Date: Tue, 6 Nov 2018 15:09:18 +0100
Subject: [PATCH] [flow] Restrict ParamName to string (#5200)

---
 packages/react-navigation/flow/react-navigation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-navigation/flow/react-navigation.js b/packages/react-navigation/flow/react-navigation.js
index 640ba845..98b5c3aa 100644
--- a/packages/react-navigation/flow/react-navigation.js
+++ b/packages/react-navigation/flow/react-navigation.js
@@ -533,7 +533,7 @@ declare module 'react-navigation' {
       eventName: string,
       callback: NavigationEventCallback
     ) => NavigationEventSubscription,
-    getParam: <ParamName>(
+    getParam: <ParamName: string>(
       paramName: ParamName,
       fallback?: $ElementType<
         $PropertyType<