Use helper functions for git completion in my own completions

[Ansgar Burchardt <ansgar@xxxxxxxx>]

Hi,

is it possible to use the helper functions defined in "_git" for the git
command in my own completion functions?

I am taking my first steps with writing completions for the
git-import-dsc, git-import-orig commands in Debian, but am not surehow I
can make sure helper functions such as __git_branch_names are available
when I user "git-import-dsc" (they are available when I use "git
import-dsc").

Regards,
Ansgar