From 92ad75a12cd11b4da9b507e4cae6e68a0a22521e Mon Sep 17 00:00:00 2001
From: hx <1367557521@qq.com>
Date: Fri, 18 Sep 2026 15:32:00 +0800
Subject: [PATCH] fix: avoid rebinding Final candidate in thinking type mapping

---
 litellm/litellm_core_utils/thinking_param_translation.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/litellm/litellm_core_utils/thinking_param_translation.py b/litellm/litellm_core_utils/thinking_param_translation.py
index 9cc490d8fd6..f9916ed9a86 100644
--- a/litellm/litellm_core_utils/thinking_param_translation.py
+++ b/litellm/litellm_core_utils/thinking_param_translation.py
@@ -52,9 +52,9 @@ def _thinking_enabled(thinking: object) -> bool:
 
 def _thinking_type_value(thinking: object, allowed: Sequence[str]) -> str | None:
     if isinstance(thinking, str):
-        candidate: Final = thinking
+        candidate = thinking
     elif isinstance(thinking, Mapping):
-        raw: Final = thinking.get("type")
+        raw = thinking.get("type")
         candidate = raw if isinstance(raw, str) else None
     elif isinstance(thinking, bool):
         candidate = "enabled" if thinking else "disabled"