How to use the wpgtk.data.color.get_color_list function in wpgtk

for x in args.a:
            if path.isfile(glob.glob(x)[0]):
                add_action(glob.glob(x)[0])
        exit(0)

    if args.c:
        print(themer.get_current())
        exit(0)

    if args.z or args.A:
        alter_action = color.shuffle_colors if args.z \
                       else color.auto_adjust
        arg_list = args.z if args.z else args.A

        for arg in arg_list:
            colors = color.get_color_list(arg)
            colors = alter_action(colors)
            color.write_colors(arg, colors)

            sample.create_sample(colors, files.get_sample_path(arg))
            logging.info("shuffled %s" % arg)
        exit(0)

    if args.link:
        files.add_template(args.link[1], args.link[0])
        exit(0)

    if args.i:
        themer.import_theme(args.i[0], args.i[1], args.T)
        exit(0)

    if args.o:

def on_import_click(self, widget):
        fcd = Gtk.FileChooserDialog(
                      'Select a colorscheme', self.parent,
                      Gtk.FileChooserAction.OPEN,
                      (Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                       Gtk.STOCK_OPEN, Gtk.ResponseType.OK))

        filter = Gtk.FileFilter()
        filter.set_name("JSON colorscheme")
        filter.add_mime_type("application/json")
        fcd.add_filter(filter)
        response = fcd.run()

        if response == Gtk.ResponseType.OK:
            self.color_list = color.get_color_list(fcd.get_filename(), True)
            self.render_buttons()
            self.render_sample()
        fcd.destroy()

def import_theme(wallpaper, json_file, theme=False):
    """import a colorscheme from a JSON file either in
    terminal.sexy or pywal format"""
    json_file = realpath(json_file)
    filename = basename(json_file)

    if theme:
        theme = pywal.theme.file(filename)
        color_list = list(theme["colors"].values())
    else:
        try:
            color_list = color.get_color_list(json_file, True)
        except IOError:
            logging.error("file does not exist")
            return

    color.write_colors(wallpaper, color_list)
    sample.create_sample(color_list, files.get_sample_path(wallpaper))
    logging.info("applied %s to %s" % (filename, wallpaper))