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

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

vllm/model_executor/models/smolvlm.py

@@ -10,20 +10,19 @@ from vllm.multimodal import MULTIMODAL_REGISTRY
 
 # yapf: disable
 from .idefics3 import Idefics3DummyInputsBuilder as SmolVLMDummyInputsBuilder
-from .idefics3 import Idefics3ForConditionalGeneration
+from .idefics3 import Idefics3ForConditionalGeneration, Idefics3ProcessingInfo
 from .idefics3 import Idefics3MultiModalProcessor as SmolVLMMultiModalProcessor
-from .idefics3 import Idefics3ProcessingInfo
 
 # yapf: enable
 
 
 class SmolVLMProcessingInfo(Idefics3ProcessingInfo):
-
     def get_hf_processor(self, **kwargs: object) -> SmolVLMProcessor:
         return self.ctx.get_hf_processor(SmolVLMProcessor, **kwargs)
 
     def _get_image_token(
-            self, processor: Optional[SmolVLMProcessor]) -> tuple[str, str]:
+        self, processor: Optional[SmolVLMProcessor]
+    ) -> tuple[str, str]:
         if processor is None:
             processor = self.get_hf_processor()
         image_token = processor.image_token
@@ -32,11 +31,12 @@ class SmolVLMProcessingInfo(Idefics3ProcessingInfo):
         return image_token, fake_image_token, global_image_token
 
 
-@MULTIMODAL_REGISTRY.register_processor(SmolVLMMultiModalProcessor,
-                                        info=SmolVLMProcessingInfo,
-                                        dummy_inputs=SmolVLMDummyInputsBuilder)
+@MULTIMODAL_REGISTRY.register_processor(
+    SmolVLMMultiModalProcessor,
+    info=SmolVLMProcessingInfo,
+    dummy_inputs=SmolVLMDummyInputsBuilder,
+)
 class SmolVLMForConditionalGeneration(Idefics3ForConditionalGeneration):
-
     def __init__(self, *, vllm_config: VllmConfig, prefix: str = ""):
         super().__init__(
             vllm_config=vllm_config,