From 1b8feae0b6767e9334a45d1381a4e26c667df0d4 Mon Sep 17 00:00:00 2001
From: quzard <1191890118@qq.com>
Date: Wed, 3 May 2023 01:41:21 +0800
Subject: [PATCH] Do not return when not present (#294)

---
 chat_stream.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/chat_stream.go b/chat_stream.go
index b5257ccc4..9ed0bc70a 100644
--- a/chat_stream.go
+++ b/chat_stream.go
@@ -7,7 +7,8 @@ import (
 )
 
 type ChatCompletionStreamChoiceDelta struct {
-	Content string `json:"content"`
+	Content string `json:"content,omitempty"`
+	Role    string `json:"role,omitempty"`
 }
 
 type ChatCompletionStreamChoice struct {