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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 get(self):
 """ Get one item and prepare to get an item with lower rank on the next call. """

        if len(self) < 1:
            return "wow"

        if self.index >= len(self):
            self.index = 0

        step = random.randint(1, min(self.step, len(self)))

        res = self[0]
        self.index += step
        self.rotate(step)
        return res