From a9c833d5802d87279d4eb2af4297a765d2bd3b0a Mon Sep 17 00:00:00 2001
From: Ke Bao <ISPObaoke@163.com>
Date: Tue, 6 Aug 2024 00:46:34 +0800
Subject: [PATCH] Fix union operator (#940)

---
 python/sglang/lang/choices.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/sglang/lang/choices.py b/python/sglang/lang/choices.py
index f10fbff97..e52c6b362 100644
--- a/python/sglang/lang/choices.py
+++ b/python/sglang/lang/choices.py
@@ -8,7 +8,7 @@ import numpy as np
 @dataclass
 class ChoicesDecision:
     decision: str
-    meta_info: Dict[str, Any] | None = None
+    meta_info: Optional[Dict[str, Any]] = None
 
 
 class ChoicesSamplingMethod(ABC):