def METHOD_NAME(self):
    if self.web_server:
        print(
            "Listener already started\nTo reset counter call `stop_listening` first."
        )
    with _Handler.count_lock:
        _Handler.post_counter = 0
    self.web_server = ThreadingHTTPServer((self.hostname, self.port), _Handler)
    server_thread = threading.Thread(target=self.web_server.serve_forever)
    server_thread.daemon = True
    server_thread.start()
    print(f"Listener server started http://{self.hostname}:{self.port}")