CMB2::should_show PHP Метод

    public function should_show()
    {
        // Default to showing this cmb
        $show = true;
        // Use the callback to determine showing the cmb, if it exists
        if (is_callable($this->prop('show_on_cb'))) {
            $show = (bool) call_user_func($this->prop('show_on_cb'), $this);
        }
        return $show;
    }