new_contents: # -*- coding: utf-8 -*-
  #
  # Copyright (c) 2014-2015, Ghislain Antony Vaillant
  # All rights reserved.
  #
  # This file is distributed under the BSD License, see the LICENSE file or
  # checkout the license terms at http://opensource.org/licenses/BSD-2-Clause).
  
  from __future__ import absolute_import, division, print_function
subject: add backend submodule