Documentation uses deprecated method

The documentation found here: http://www.onehippo.org/7_9/library/concepts/plugins/menu-plugin.html

uses the getIcon() method of the StdWorkflow class.

This method is deprecated in version 3.2.0 of the hippo-cms-api lib

Could you inform me what the preferred non deprecated way of setting an icon is in the current version?

kind regards
Jaap-Jan