From 1b0aa6f7ce5a90a75872b60cf532917a28eaeeab Mon Sep 17 00:00:00 2001
From: Massimo Hamilton <massimo.hamilton@outlook.com>
Date: Fri, 16 Dec 2016 09:43:46 +0000
Subject: [PATCH] fix(element): Fix typing of ElementFinder.then

---
 lib/element.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/element.ts b/lib/element.ts
index 3dca28f81..191d0b0ef 100644
--- a/lib/element.ts
+++ b/lib/element.ts
@@ -792,7 +792,9 @@ export class ElementArrayFinder extends WebdriverWebElement {
 export class ElementFinder extends WebdriverWebElement {
   parentElementArrayFinder: ElementArrayFinder;
   elementArrayFinder_: ElementArrayFinder;
-  then: (fn: Function, errorFn?: Function) => wdpromise.Promise<any> = null;
+  then?:
+      (fn: (value: any) => {} | wdpromise.IThenable<any>,
+       errorFn?: (error: any) => any) => wdpromise.Promise<any> = null;
 
   constructor(public browser_: ProtractorBrowser, elementArrayFinder: ElementArrayFinder) {
     super();