Convert formatting to use ruff instead of yapf + isort (#26247)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

vllm/reasoning/mistral_reasoning_parser.py

@@ -5,8 +5,7 @@ from functools import cached_property
 
 from vllm.logger import init_logger
 from vllm.reasoning import ReasoningParser, ReasoningParserManager
-from vllm.reasoning.deepseek_r1_reasoning_parser import (
-    DeepSeekR1ReasoningParser)
+from vllm.reasoning.deepseek_r1_reasoning_parser import DeepSeekR1ReasoningParser
 from vllm.transformers_utils.tokenizers.mistral import MistralTokenizer
 
 logger = init_logger(__name__)
@@ -23,34 +22,35 @@ class MistralReasoningParser(DeepSeekR1ReasoningParser):
 
     def __init__(self, tokenizer: MistralTokenizer, *args, **kwargs):
         if not isinstance(tokenizer, MistralTokenizer):
-            raise ValueError(
-                "The tokenizer must be an instance of MistralTokenizer.")
+            raise ValueError("The tokenizer must be an instance of MistralTokenizer.")
 
         ReasoningParser.__init__(self, tokenizer, *args, **kwargs)
 
         if not self.model_tokenizer:
             raise ValueError(
                 "The model tokenizer must be passed to the ReasoningParser "
-                "constructor during construction.")
+                "constructor during construction."
+            )
 
-        self.start_token_id = tokenizer.tokenizer.get_control_token(
-            self.start_token)
-        self.end_token_id = tokenizer.tokenizer.get_control_token(
-            self.end_token)
+        self.start_token_id = tokenizer.tokenizer.get_control_token(self.start_token)
+        self.end_token_id = tokenizer.tokenizer.get_control_token(self.end_token)
 
         if self.start_token_id is None or self.end_token_id is None:
             raise RuntimeError(
                 "Mistral reasoning parser could not locate think start/end "
-                "tokens in the tokenizer!")
+                "tokens in the tokenizer!"
+            )
 
     @cached_property
     def start_token(self) -> str:
         """The token that starts reasoning content."""
         from mistral_common.tokens.tokenizers.base import SpecialTokens
+
         return SpecialTokens.begin_think
 
     @cached_property
     def end_token(self) -> str:
         """The token that ends reasoning content."""
         from mistral_common.tokens.tokenizers.base import SpecialTokens
+
         return SpecialTokens.end_think