Building Providers for Tasks?

[Nathan R. Yergler]

I recently downloaded the latest release of Lightning with Thunderbird
3, and am really enjoying using it. One thing I'd like is the ability
to synchronize tasks with Remember The Milk. It appears there used to
be a data provider, but the reviews indicate it's currently broken.

Is there any documentation or (more likely?) code in the source tree
that demonstrates how to write a provider for task data?

Thanks,

Nathan