def set_mute(self, instance_id=0, channel='Master', desired_mute=0):
    action = self.service.get_action('SetMute')
    return action.call(InstanceID=instance_id, Channel=channel, DesiredMute=desired_mute)
def set_mute(self, instance_id=0, channel='Master', desired_mute=0):
    action = self.service.get_action('SetMute')
    return action.call(InstanceID=instance_id, Channel=channel, DesiredMute=desired_mute)