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# Stub definitions for things provided by the typing package
# for use by older Python versions.
import collections
class Dummy:
def __getitem__(self, *args):
return None
List = Dummy()
Tuple = Dummy()
Set = Dummy()
TextIO = Dummy()
Iterator = Dummy()
Callable = Dummy()
Optional = Dummy()
Dict = Dummy()
Union = Dummy()
Any = Dummy()
NewType = lambda name, ty: ty
def NamedTuple(name, fields):
return collections.namedtuple(name, [field[0] for field in fields])
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