How to get more than the first 10 messages of a folder?

[HippoMan]

I have almost a year of SMS messages in my Google Voice "Text" folder,
and I would like to extract them and process them offline (outside of
the Google Voice environment).

Since Google Voice doesn't offer a message export function, I thought
I would try pygooglevoice for this purpose.

It's a great library, and I was able to get it working rather easily.

However, it appears that it can only retrieve the first 10
conversations in any given folder. Given that I have some 460
conversations, I'm wondering if there is a way to use pygooglevoice to
retrieve all of my messages.

I didn't see any parameters that I could pass to any Folder object
methods which would allow me to traverse _all_ of my messages, not
just the first 10, but perhaps I missed something.

Is there any way I can do what I want using pygooglevoice?

Thanks in advance.