From b01dc21f6c118216bc62bdcd40086b5bc45ebdc3 Mon Sep 17 00:00:00 2001
From: yellow chicks <seachen@tencent.com>
Date: Fri, 11 Feb 2022 08:41:34 +0800
Subject: [PATCH] refactor: use Key's Defined method (#2593)

* optimize(attribute): use Key's Defined method

* Update kv.go
---
 attribute/kv.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/attribute/kv.go b/attribute/kv.go
index 8f579338554..1ddf3ce0580 100644
--- a/attribute/kv.go
+++ b/attribute/kv.go
@@ -26,7 +26,7 @@ type KeyValue struct {
 
 // Valid returns if kv is a valid OpenTelemetry attribute.
 func (kv KeyValue) Valid() bool {
-	return kv.Key != "" && kv.Value.Type() != INVALID
+	return kv.Key.Defined() && kv.Value.Type() != INVALID
 }
 
 // Bool creates a KeyValue with a BOOL Value type.