wp-notices.php
public static function instance() {

		if ( ! isset( self::$instance ) && ! ( self::$instance instanceof WP_Notice ) ) {
			self::$instance = new WP_Notice;
			self::$instance->init();
		}

		return self::$instance;

	}
public static function instance() {

		if ( ! isset( self::$instance ) && ! ( self::$instance instanceof WP_Notice ) ) {
			self::$instance = new WP_Notice;
			self::$instance->init();
		}

		return self::$instance;

	}
Get things started.

@return void