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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 argsort(self, *args, **kwargs):
 """ Return the integer indices that would sort the index. Parameters *args Passed to `numpy.ndarray.argsort`. **kwargs Passed to `numpy.ndarray.argsort`. Returns ------- numpy.ndarray Integer indices that would sort the index if used as an indexer. See Also -------- numpy.argsort : Similar method for NumPy arrays. Index.sort_values : Return sorted copy of Index. Examples -------- Index(['b', 'a', 'd', 'c'], dtype='object') array([1, 0, 3, 2]) Index(['a', 'b', 'c', 'd'], dtype='object') """

        result = self.asi8
        if result is None:
            result = np.array(self)
        return result.argsort(*args, **kwargs)