From c54ff38646bf8e6ec1156d86145ecf8337a6d3f3 Mon Sep 17 00:00:00 2001
From: Ishaan Jaffer <ishaan@berri.ai>
Date: Mon, 27 Apr 2026 18:59:15 -0700
Subject: [PATCH] fix(deepseek): move _ensure_reasoning_content before
 @overload stubs to fix mypy errors

---
 litellm/llms/deepseek/chat/transformation.py | 26 ++++++++++----------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/litellm/llms/deepseek/chat/transformation.py b/litellm/llms/deepseek/chat/transformation.py
index 4e885edbb3f..2456c5eddbd 100644
--- a/litellm/llms/deepseek/chat/transformation.py
+++ b/litellm/llms/deepseek/chat/transformation.py
@@ -62,19 +62,6 @@ class DeepSeekChatConfig(OpenAIGPTConfig):
 
         return optional_params
 
-    @overload
-    def _transform_messages(
-        self, messages: List[AllMessageValues], model: str, is_async: Literal[True]
-    ) -> Coroutine[Any, Any, List[AllMessageValues]]: ...
-
-    @overload
-    def _transform_messages(
-        self,
-        messages: List[AllMessageValues],
-        model: str,
-        is_async: Literal[False] = False,
-    ) -> List[AllMessageValues]: ...
-
     def _ensure_reasoning_content_on_assistant_messages(
         self, messages: List[AllMessageValues]
     ) -> List[AllMessageValues]:
@@ -99,6 +86,19 @@ class DeepSeekChatConfig(OpenAIGPTConfig):
                 message["reasoning_content"] = ""  # type: ignore[typeddict-unknown-key]
         return messages
 
+    @overload
+    def _transform_messages(
+        self, messages: List[AllMessageValues], model: str, is_async: Literal[True]
+    ) -> Coroutine[Any, Any, List[AllMessageValues]]: ...
+
+    @overload
+    def _transform_messages(
+        self,
+        messages: List[AllMessageValues],
+        model: str,
+        is_async: Literal[False] = False,
+    ) -> List[AllMessageValues]: ...
+
     def _transform_messages(
         self, messages: List[AllMessageValues], model: str, is_async: bool = False
     ) -> Union[List[AllMessageValues], Coroutine[Any, Any, List[AllMessageValues]]]: