1class OrderedDict:
2    ""
3
4    def clear():
5        pass
6
7    def copy():
8        pass
9
10    def fromkeys():
11        pass
12
13    def get():
14        pass
15
16    def items():
17        pass
18
19    def keys():
20        pass
21
22    def pop():
23        pass
24
25    def popitem():
26        pass
27
28    def setdefault():
29        pass
30
31    def update():
32        pass
33
34    def values():
35        pass
36
37
38def namedtuple():
39    pass
40