Quoting Kero <kero / chello.single-dot.nl>:
> >
> > Once you understand how the web service works, you can probably
> > figure out the ruby classes without much documentation --
>
> I got the wsdl. I looked at it (again) and noticed something I hadn't
> realized before: the array is the sole field of a ComplexType.
>
> For Ruby that means I need to wrap the array with my observations into a
> Struct. And behold! that works.
>

Congratulations on solving your problem!

-kevin