From 059027bc9d01564f69436f4b51835e412219128f Mon Sep 17 00:00:00 2001
From: Kevin Wan <wanjunfeng@gmail.com>
Date: Sat, 20 Feb 2021 18:21:23 +0800
Subject: [PATCH] fix golint issues in core/lang (#492)

---
 core/lang/lang.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/lang/lang.go b/core/lang/lang.go
index 901c5604..11ce19f4 100644
--- a/core/lang/lang.go
+++ b/core/lang/lang.go
@@ -1,8 +1,11 @@
 package lang
 
+// Placeholder is a placeholder object that can be used globally.
 var Placeholder PlaceholderType
 
 type (
-	GenericType     = interface{}
+	// GenericType can be used to hold any type.
+	GenericType = interface{}
+	// PlaceholderType represents a placeholder type.
 	PlaceholderType = struct{}
 )