old_contents: """ File Upload backends. """
  
  
  from django.conf import settings
  
  from . import django_storage, filesystem, s3, swift
  
  
  def get_backend():
      # .. setting_name: ORA2_FILEUPLOAD_BACKEND
      # .. setting_default: s3
      # .. setting_description: The backend used to upload the ora2 submissions attachments
      #     the supported values are: s3, filesystem, swift and django.
      backend_setting = getattr(settings, "ORA2_FILEUPLOAD_BACKEND", "s3")
      if backend_setting == "s3":
          return s3.Backend()
      elif backend_setting == "filesystem":
          return filesystem.Backend()
      elif backend_setting == "swift":
          return swift.Backend()
      elif backend_setting == "django":
          return django_storage.Backend()
      else:
          raise ValueError("Invalid ORA2_FILEUPLOAD_BACKEND setting value: %s" % backend_setting)
  
new_contents: """ File Upload backends. """
  
  
  from django.conf import settings
  
  from . import django_storage, filesystem, s3, swift
  
  
  def get_backend():
      # .. setting_name: ORA2_FILEUPLOAD_BACKEND
      # .. setting_default: 's3'
      # .. setting_description: The backend used to upload the ora2 submissions attachments.
      #     The supported values are: 's3', 'filesystem', 'swift' and 'django'.
      backend_setting = getattr(settings, "ORA2_FILEUPLOAD_BACKEND", "s3")
      if backend_setting == "s3":
          return s3.Backend()
      elif backend_setting == "filesystem":
          return filesystem.Backend()
      elif backend_setting == "swift":
          return swift.Backend()
      elif backend_setting == "django":
          return django_storage.Backend()
      else:
          raise ValueError("Invalid ORA2_FILEUPLOAD_BACKEND setting value: %s" % backend_setting)
  
subject: Fix annotation: The default value should be a string