From 564da6193726d0b2d70e2824d81411bc118efd43 Mon Sep 17 00:00:00 2001
From: Matthew Brown <github@muglug.com>
Date: Fri, 1 Mar 2019 09:24:52 -0500
Subject: [PATCH] Add missing return type

---
 src/Psalm/Storage/FunctionLikeParameter.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Psalm/Storage/FunctionLikeParameter.php b/src/Psalm/Storage/FunctionLikeParameter.php
index 088140ccc..fa3e2112c 100644
--- a/src/Psalm/Storage/FunctionLikeParameter.php
+++ b/src/Psalm/Storage/FunctionLikeParameter.php
@@ -109,7 +109,7 @@ class FunctionLikeParameter
             . ($this->is_optional ? '=' : '');
     }
 
-    public function getId()
+    public function getId() : string
     {
         return ($this->type ? $this->type->getId() : 'mixed')
             . ($this->is_variadic ? '...' : '')