old_contents: # -*- coding: utf-8 -*-
  """
  Use behave4cmd0 step library (predecessor of behave4cmd).
  """
  
  # -- REGISTER-STEPS:
  import behave4cmd0.command_steps
  
new_contents: # -*- coding: utf-8 -*-
  """
  Use behave4cmd0 step library (predecessor of behave4cmd).
  """
  
  # -- REGISTER-STEPS:
  import behave4cmd0.__all_steps__
  
subject: Use all behave4cmd0 steps now.