old_contents: from feature import Feature
  
  
  def feature_map():
      return {
          module.__name__.lower(): module
          for module in Feature.__subclasses__()
      }
  
new_contents: from collections import OrderedDict
  
  from feature import Feature
  
  
  def feature_map():
      return OrderedDict(
          sorted((m.__name__.lower(), m) for m in Feature.__subclasses__())
      )
  
subject: Sort feature list