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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:
 async def shuffle_participants(self):
 """ Shuffle participants' seeds |methcoro| Note: |from_api| Randomize seeds among participants. Only applicable before a tournament has started. Raises: APIException """

        res = await self.connection('POST', 'tournaments/{}/participants/randomize'.format(self._id))
        self._refresh_participants_from_json(res)