fix linting again

Author: pintaf

pydantic_ai_slim/pydantic_ai/models/mistral.py

@@ -542,8 +542,9 @@ def _map_user_prompt(self, part: UserPromptPart) -> MistralUserMessage:
                         content.append(MistralImageURLChunk(image_url=image_url, type='image_url'))
                     elif item.media_type == 'application/pdf':
                         content.append(
-                            MistralDocumentURLChunk(document_url=f'data:application/pdf;base64,{base64_encoded}',
-                                                    type='document_url')
+                            MistralDocumentURLChunk(
+                                document_url=f'data:application/pdf;base64,{base64_encoded}', type='document_url'
+                            )
                         )
                     else:
                         raise RuntimeError('BinaryContent other than image or PDF is not supported in Mistral.')