public function __construct() {

		$this->id    = 'notifications';
		$this->label = __( 'Notifications', 'lifterlms' );

		add_filter( 'lifterlms_settings_tabs_array', array( $this, 'add_settings_page' ), 20 );
		add_action( 'lifterlms_settings_' . $this->id, array( $this, 'output' ) );
		add_action( 'lifterlms_settings_save_' . $this->id, array( $this, 'before_save' ), 5 );
		add_action( 'lifterlms_settings_save_' . $this->id, array( $this, 'save' ) );
		add_action( 'lifterlms_settings_save_' . $this->id, array( $this, 'after_save' ), 15 );
		add_filter( 'llms_settings_' . $this->id . '_has_save_button', array( $this, 'maybe_disable_save' ) );

	}