How to use the gradio.networking.set_interface_types_in_config_file function in gradio

def update_config_file(self, output_directory):
        networking.set_interface_types_in_config_file(
            output_directory,
            self.input_interface.__class__.__name__.lower(),
            self.output_interface.__class__.__name__.lower(),
        )

        if hasattr(self.input_interface, 'get_sample_inputs'):
            networking.set_sample_data_in_config_file(
                output_directory,
                self.input_interface.get_sample_inputs()
            )

        networking.set_always_flagged_in_config_file(output_directory, self.always_flag)
        networking.set_disabled_in_config_file(output_directory, self.interactivity_disabled)

print("Closing existing server...")
            if self.simple_server is not None:
                try:
                    networking.close_server(self.simple_server)
                except OSError:
                    pass

        output_directory = tempfile.mkdtemp()
        # Set up a port to serve the directory containing the static files with interface.
        server_port, httpd = networking.start_simple_server(self, output_directory)
        path_to_local_server = "http://localhost:{}/".format(server_port)
        networking.build_template(
            output_directory, self.input_interface, self.output_interface
        )

        networking.set_interface_types_in_config_file(
            output_directory,
            self.input_interface.__class__.__name__.lower(),
            self.output_interface.__class__.__name__.lower(),
        )
        self.status = self.STATUS_TYPES["RUNNING"]
        self.simple_server = httpd

        is_colab = False
        try:  # Check if running interactively using ipython.
            from_ipynb = get_ipython()
            if "google.colab" in str(from_ipynb):
                is_colab = True
        except NameError:
            pass

        try: