hg way to get just a bundle of a remote repository without applying it

[Avi Kelman]

Hi all. I'm looking for how to do basically the first part of hg clone, where a
bundle file is retrieved over the wire from a remote server, but then just
saving that bundle file instead of applying it to build some new repo metadata.
I swear I had a way to do it quickly, but now I can't remember what I was
using. Thoughts?

Avi