[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/litserve/specs/openai.py

@@ -313,7 +313,7 @@ def validate_chat_message(self, obj):
     def _encode_response(self, output: Union[Dict[str, str], List[Dict[str, str]]]) -> Dict:
         logger.debug(output)
         if output is None:
-            message = {"role": "assistant", "content": None} 
+            message = {"role": "assistant", "content": None}
         elif isinstance(output, str):
             message = {"role": "assistant", "content": output}
         elif self.validate_chat_message(output):