old_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  # N.B. Be careful what is imported in this file; it is included in setup.py
  #      so dependencies are not necessarily installed.
  
  __version__ = '0.0.1'
  
  
  def host(identifier):
      pass
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  # N.B. Be careful what is imported in this file; it is included in setup.py
  #      so dependencies are not necessarily installed.
  
  __version__ = '0.0.1'
  
subject: Remove stub function