From f5270dd0f2c551b87ee31b65e84db29d040fe45d Mon Sep 17 00:00:00 2001
From: David Patrick <david.patrick@auth0.com>
Date: Mon, 22 Mar 2021 15:11:28 -0700
Subject: [PATCH] Fix type def for getSigningKey (#236)

kid can be undefined or null for `getSigningKey` with callback, its completely optional when using the promise, this fixes the type definition
---
 index.d.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.d.ts b/index.d.ts
index 91e85bb..422f9d3 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -10,8 +10,8 @@ declare namespace JwksRsa {
 
     getKeys(): Promise<unknown>;
     getSigningKeys(): Promise<SigningKey[]>;
-    getSigningKey(kid: string): Promise<SigningKey>;
-    getSigningKey(kid: string, cb: (err: Error | null, key: SigningKey) => void): void;
+    getSigningKey(kid?: string | null | undefined): Promise<SigningKey>;
+    getSigningKey(kid: string | null | undefined, cb: (err: Error | null, key: SigningKey) => void): void;
   }
 
   interface Headers {