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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def unstub(*objs):
 """Unstubs all stubbed methods and functions If you don't pass in any argument, *all* registered mocks and patched modules, classes etc. will be unstubbed. Note that additionally, the underlying registry will be cleaned. After an `unstub` you can't :func:`verify` anymore because all interactions will be forgotten. """


    if objs:
        for obj in objs:
            mock_registry.unstub(obj)
    else:
        mock_registry.unstub_all()