class KukaGripperController(KukaGripperBaseController):
    def __init__(self):
        super(KukaGripperController, self).__init__()
        self.kuka_cmd = Commander()
        
    def ptp(self, feedback):
        print('PTP')
        self.kuka_cmd.ptp(self._joint_states.position)
 def __init__(self):
     super(KukaGripperController, self).__init__()
     self.kuka_cmd = Commander()