80     def __getitem__(self, key):  argument
89     def __delitem__(self, key):  argument
94     def __contains__(self, key):  argument
103     def has_key(self, key):  argument
115     def __setitem__(self, key, value):  argument
148     def get(self, key, default=None):  argument
225     def pop(self, key, *args):  argument
240     def setdefault(self, key, default=None):  argument
310     def __new__(type, ob, callback, key):  argument
315     def __init__(self, ob, callback, key):  argument
359     def __delitem__(self, key):  argument
362     def __getitem__(self, key):  argument
368     def __setitem__(self, key, value):  argument
390     def get(self, key, default=None):  argument
393     def has_key(self, key):  argument
400     def __contains__(self, key):  argument
477     def pop(self, key, *args):  argument
480     def setdefault(self, key, default=None):  argument