old_contents: from collections import defaultdict
  
  from behave import model
  
  class AttrDict(dict):
      def __getattr__(self, attr):
          return self.__getitem__(attr)
      
      def __setattr__(self, attr, value):
          return self.__setitem__(attr, value)
          
  class Context(object):
      def __init__(self):
          self.all = AttrDict()
          self.feature = AttrDict()
          self.scenario = AttrDict()
      
      def reset_feature(self):
          self.feature = AttrDict()
      
      def reset_scenario(self):
          self.scenario = AttrDict()
  
  class StepRegistry(object):
      def __init__(self):
          self.steps = {
              'given': [],
              'when': [],
              'then': [],
          }
      
      def add_definition(self, keyword, regex, func):        
          match = model.Match(func)
          self.steps[keyword.lower()].append((regex, match))
      
      def find_match(self, step):
          for regex, match in self.steps[step.step_type.lower()]:
              m = regex.match(step.name)
              if not m:
                  continue
                  
              groupindex = dict((y, x) for x, y in regex.groupindex)
              args = []
              for index, group in enumerate(m.groups()):
                  index += 1
                  name = groupindex.get(index, None)
                  args.append(model.Argument(m.start(index), group, name))
                              
              return match.with_arguments(args)
              
          return None
  
  class HooksRegistry(object):
      def __init__(self):
          self.before = defaultdict(lambda: [])
          self.after = defaultdict(lambda: [])
  
          import types
  
  hooks = HooksRegistry()
  steps = StepRegistry()
  
new_contents: from collections import defaultdict
  
  from behave import model
  
  class AttrDict(dict):
      def __getattr__(self, attr):
          return self.__getitem__(attr)
      
      def __setattr__(self, attr, value):
          return self.__setitem__(attr, value)
          
  class Context(object):
      def __init__(self):
          self.all = AttrDict()
          self.feature = AttrDict()
          self.scenario = AttrDict()
      
      def reset_feature(self):
          self.feature = AttrDict()
      
      def reset_scenario(self):
          self.scenario = AttrDict()
  
  class StepRegistry(object):
      def __init__(self):
          self.steps = {
              'given': [],
              'when': [],
              'then': [],
          }
      
      def add_definition(self, keyword, regex, func):        
          match = model.Match(func)
          self.steps[keyword.lower()].append((regex, match))
      
      def find_match(self, step):
          for regex, match in self.steps[step.step_type.lower()]:
              m = regex.match(step.name)
              if not m:
                  continue
                  
              groupindex = dict((y, x) for x, y in regex.groupindex.items())
              args = []
              for index, group in enumerate(m.groups()):
                  index += 1
                  name = groupindex.get(index, None)
                  args.append(model.Argument(m.start(index), group, name))
                              
              return match.with_arguments(args)
              
          return None
  
  class HooksRegistry(object):
      def __init__(self):
          self.before = defaultdict(lambda: [])
          self.after = defaultdict(lambda: [])
  
          import types
  
  hooks = HooksRegistry()
  steps = StepRegistry()
  
subject: Add missing items()