From d321c6c903da49bf0b71fbaa89f3e6cc51b37cf4 Mon Sep 17 00:00:00 2001
From: jlaamanen <joona.laamanen@gmail.com>
Date: Tue, 3 Apr 2018 12:28:38 +0300
Subject: [PATCH] Allow legacy element property definitions with only a type.
 Fixes #5173

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

diff --git a/types/extra-types.d.ts b/types/extra-types.d.ts
index c4d38f5fb5..8326a0df2e 100644
--- a/types/extra-types.d.ts
+++ b/types/extra-types.d.ts
@@ -17,7 +17,7 @@ interface PolymerElementPropertiesMeta {
 }
 
 type PolymerElementProperties = {
-  [key: string]: PolymerElementPropertiesMeta
+  [key: string]: PolymerElementPropertiesMeta | Function;
 };
 
 // TODO Document these properties.