protected function is_admin_page($page = '')
{
if ($this->bridge->is_admin() && !empty($_GET['page']) && (in_array($_GET['page'], $this->option_keys) || in_array($_GET['page'], $this->extra_option_keys)) && (empty($page) || !empty($page) && $page == $_GET['page'])) {
return true;
}
}
