old_contents: # -*- coding: utf-8 -*-
  import logging
  logging.getLogger(__name__).addHandler(logging.NullHandler())
  
  from feeder import GraphiteFeeder
  
  __all__ = ["GraphiteFeeder"]
  
new_contents: # -*- coding: utf-8 -*-
  import logging
  logging.getLogger(__name__).addHandler(logging.NullHandler())
  
  from .feeder import GraphiteFeeder
  
  __all__ = ["GraphiteFeeder"]
  
subject: Use relative import