WSDL: http://xyz.example.com/__/webservices/ecommerce?wsdl
This web service is used to interact with the ecommerce module. This currently supports
only reading product information.
Argument 1: Module_Ecommerce_Webservices_Options_GetCategories
The options to determine which categories to return
Returns: Array of Module_Ecommerce_Webservices_Category
This method returns a list of product categories based on the specified options.
