class Communication:
    def make_call(self):
        pass
    def make_sms(self):
        pass
    def internet(self):
        pass
    def gps(self):
        pass




class LandLine(Communication):
    "user need to implement all the things here this is bad codeing."
    def make_call(self):
        pass
    def make_sms(self):
        pass
    def internet(self):
        pass
    def gps(self):
        pass
