Yahoo::Marketing::ForecastService - an object that let you know the results you might expect from your ads (impressions, clicks, cost, and other performance metrics). Keep in mind that the results from a forecast are estimates only and are not guaranteed. You can perform forecasts for ad groups or keywords.
See EWS documentation online for available SOAP methods:
http://searchmarketing.yahoo.com/developer/docs/V3/reference/services/ForecastService.php
Also see perldoc Yahoo::Marketing::Service for functionality common to all service modules.
Creates a new instance
