code: def upload_path(instance, filename):
      '''
          Sanitize the user-provided file name, add timestamp for uniqness.
      '''
  
      filename = filename.replace(" ", "_")
      filename = unicodedata.normalize('NFKD', filename).lower()
      return os.path.join(str(timezone.now().date().isoformat()), filenamef upload_path(instance, filename):
      '''
          Sanitize the user-provided file name, add timestamp for uniqness.
      '''
  
      filename = filename.replace(" ", "_")
      filename = unicodedata.normalize('NFKD', filename).lower()
      return os.path.join(str(timezone.now().date().isoformat()), filename)
docs: Sanitize the user-provided file name, add timestamp for uniqness.