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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 rotations(self, region):
 """ Returns champion rotations, including free-to-play and low-level free-to-play rotations. :returns: ChampionInfo """

        url, query = ChampionApiV3Urls.rotations(region=region)
        return self._raw_request(self.rotations.__name__, region, url, query)