60     def __getmutable__(cls, key, readonly=False):  argument
68         if readonly:
88     def __getitem__(cls, key, default=__getmarker__, readonly=False):  argument
93                 value = cls.__getmutable__(key, readonly)
123     def iter(cls, type, readonly=False):  argument
135                 if readonly:
151     def itervalues(cls, readonly=False):  argument
152         if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False:
154         return cls.iter("values", readonly)
156     def iteritems(cls, readonly=False):  argument
157         if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False:
159         return cls.iter("items", readonly)