function __construct()
{
$this->loaded_settings = null;
$this->sections = array();
$this->page_name = $this->plugin_domain . '-options';
add_action('admin_init', array($this, 'register_sections'), 5);
add_action('admin_menu', array($this, 'setup_options_page'));
add_action('admin_enqueue_scripts', array($this, 'register_assets'));
}