code: def load_default_moderator():
      
      if appsettings.FLUENT_COMMENTS_DEFAULT_MODERATOR == 'default':
          # Perform spam checks
          return moderation.FluentCommentsModerator(None)
      elif appsettings.FLUENT_COMMENTS_DEFAULT_MODERATOR == 'deny':
          # Deny all comments not from known registered models.
          return moderation.AlwaysDeny(None)
      elif str(appsettings.FLUENT_COMMENTS_DEFAULT_MODERATOR).lower() == 'none':
          # Disables default moderator
          return moderation.NullModerator(None)
      elif '.' in appsettings.FLUENT_COMMENTS_DEFAULT_MODERATOR:
          return import_string(appsettings.FLUENT_COMMENTS_DEFAULT_MODERATOR)(None)
      else:
          raise ImproperlyConfigured(
              "Bad FLUENT_COMMENTS_DEFAULT_MODERATOR value. Provide default/deny/none or a dotted path"
          )
docs: Find a moderator object