old_contents: from .dictionaries import DictObject, apply_dict_object, DictionaryView, TwoWayDictionary, \
      DirtyDict, KeyAwareDefaultDict, ExpiringEntryDict, SelfCleaningDefaultDict
  from .hashable_objects import HashableWrapper
  from .immutable import Immutable, frozendict
  from .proxy import Proxy
  from .ranking import Ranking
  from .singleton import Singleton, SingletonWithRegardsTo
  from .sorted_list import SortedList, SliceableDeque
  from .mixins import OmniHashableMixin, ReprableMixin
  from .heaps import Heap, SetHeap, TimeBasedHeap, TimeBasedSetHeap
  from .typednamedtuple import typednamedtuple
  
  __all__ = [
      'KeyAwareDefaultDict',
      'Proxy',
      'ReprableMixin',
      'DirtyDict',
      'SortedList',
      'SelfCleaningDefaultDict',
      'SliceableDeque',
      'Ranking',
      'ExpiringEntryDict',
      'TwoWayDictionary',
      'typednamedtuple',
      'HashableWrapper',
      'DictionaryView',
      'frozendict',
      'OmniHashableMixin',
      'Singleton',
      'SingletonWithRegardsTo',
      'DictObject',
      'apply_dict_object',
      'Immutable'
  ]
  
new_contents: from .dictionaries import DictObject, apply_dict_object, DictionaryView, TwoWayDictionary, \
      DirtyDict, KeyAwareDefaultDict, ExpiringEntryDict, SelfCleaningDefaultDict
  from .hashable_objects import HashableWrapper
  from .immutable import Immutable, frozendict
  from .proxy import Proxy
  from .ranking import Ranking
  from .singleton import Singleton, SingletonWithRegardsTo
  from .sorted_list import SortedList, SliceableDeque
  from .mixins import OmniHashableMixin, ReprableMixin
  from .heaps import Heap, SetHeap, TimeBasedHeap, TimeBasedSetHeap
  from .typednamedtuple import typednamedtuple
  
  __all__ = [
      'KeyAwareDefaultDict',
      'Proxy',
      'ReprableMixin',
      'DirtyDict',
      'SortedList',
      'SelfCleaningDefaultDict',
      'SliceableDeque',
      'Ranking',
      'ExpiringEntryDict',
      'TwoWayDictionary',
      'typednamedtuple',
      'HashableWrapper',
      'DictionaryView',
      'frozendict',
      'OmniHashableMixin',
      'Singleton',
      'SingletonWithRegardsTo',
      'DictObject',
      'apply_dict_object',
      'Immutable',
      'SetHeap', 'TimeBasedHeap', 'TimeBasedSetHeap', 'Heap'
  ]
  
subject: fix __all__ in structures