Please help a SOAP novice

I am new to this field, and can’t understand what the 8.5 help database means (in section Creating web service consumers) by “just instantiate the generated web service consumer class that is a subclass of PortTypeBase”.

Can someone maybe give me an example of a simple WSDL file, and how you “just instantiate …”

I am trying to build an agent that can retrieve data from an external web source. I have the wsdl file, and have created the web service, but I haven’t a clue how to go on from there.

Any help will be appreciated.