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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_volume(self, controller, zone):
 """ Gets the volume level which needs to be doubled to get it to the range of 0..100 - it is located on a 2 byte offset """

        volume_level = self.get_zone_info(controller, zone, 2)
        if volume_level is not None:
            volume_level *= 2
        return volume_level