old_contents: # DO NOT EDIT THIS FILE.
  #
  # The following ensures that this package is included in the 'msl' namespace.
  #
  from pkgutil import extend_path
  __path__ = extend_path(__path__, __name__)
  
new_contents: """
  DO NOT EDIT THIS FILE.
  
  The following ensures that this package is included in the **msl** namespace.
  """
  __path__ = __import__('pkgutil').extend_path(__path__, __name__)
  
subject: create the msl namespace using the recommended syntax