From 79f09921072effd71b3c33d3bc70c252589ceebe Mon Sep 17 00:00:00 2001
From: Huan LI <zixia@zixia.net>
Date: Wed, 30 May 2018 11:52:25 +0800
Subject: [PATCH] add the missing `key` arg for `length()`

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

diff --git a/types/lru-cache/index.d.ts b/types/lru-cache/index.d.ts
index 5a6c9c9e4f..ed40619b11 100644
--- a/types/lru-cache/index.d.ts
+++ b/types/lru-cache/index.d.ts
@@ -40,7 +40,7 @@ declare namespace LRU {
          * `max` like-sized things. The item is passed as the first argument,
          * and the key is passed as the second argument.
          */
-        length?(value: V): number;
+        length?(value: V, key?: K): number;
 
         /**
          * Function that is called on items when they are dropped from the cache.