old_contents: from .__about__ import (__title__, __package_name__, __version__, __summary__, __url__, \
                          __keywords__, __email__, __author__, __license__, __copyright__)
  
  from . import config
  from . import engines
  
  __all__ = [
      'config',
      'engines',
  ]
  
new_contents: from .__about__ import (__title__, __package_name__, __version__, __summary__, __url__, \
                          __keywords__, __email__, __author__, __license__, __copyright__)
  
  from . import config
  
  __all__ = [
      'config',
  ]
  
subject: bring that back when I'm ready to test engines