# File lib/fog/aws/requests/sns/set_topic_attributes.rb, line 30
        def set_topic_attributes(arn, attribute_name, attribute_value)
          attributes = self.data[:topics][arn]

          if %w(Policy DisplayName DeliveryPolicy).include?(attribute_name)
            attributes[attribute_name] = attribute_value
            self.data[:topics][arn] = attributes
          end

          response = Excon::Response.new
          response.body = {"RequestId" => Fog::AWS::Mock.request_id}
          response
        end