@staticmethod
    def keepalive():
        while Sender.live:
            time.sleep(5)
            Sender.set_header(4,0,1,1)
            Sender.mySocket.send(Sender.myHeader)



    @staticmethod
    def send_message():
        t1 = threading.Thread(target = Sender.keepalive)
        while True:
            Sender.live = True
            t1.start
            command = input("CHOOSE MESSAGE TYPE (TEXT/FILE/QUIT)\n")
            Sender.live = False
            if command == "QUIT":
                Sender.sender_close()
                t1.join
                break
            elif command == "TEXT":
                Sender.send_text()
            elif command == "FILE":
                Sender.send_file()