[PyMOL] Alignment objects

Dear PyMOL community,

I am  trying to use the align command (from within python)
and want to evaluate the pairwise matches.
the command

cmd.align(sel1, sel2, object="alignment")

should do. Sorry for this stupid question,
but how do I get hold of the "alignment" object, and what is its 
functionality?
Ie which methods/values does it provide?

Many thanks.
Andreas

-- 
Andreas Henschel
Bioinformatics Group
TU Dresden
Tatzberg 47-51
01307 Dresden, Germany

Phone: +49 351 463 40063