- from typing import Optional
 
- from models import UploadFile, db
 
- class UploadFileService:
 
-     @staticmethod
 
-     def get_upload_file(upload_file_id) -> Optional[UploadFile]:
 
-         upload_file: Optional[UploadFile] = (
 
-             db.session.query(UploadFile).filter_by(id=upload_file_id).first()
 
-         )
 
-         return upload_file
 
 
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