How do I reference the repository's hgrc sections from within my custom hook?

I've written a generic changegroup hook function that I would 开发者_StackOverflow中文版like to customize for each repository by setting some hgrc section variables, like so:

[my_hook_params]
name = whatever
version = 1.0

How should I go about doing this?

Bah. See 4.2 Reading Configuration Files