=item expiry_threshold
-The time (in seconds) before the session expiration to update the
-expiration time (and thus the session).
+Only update the session expiry time if it would otherwise expire
+within this many seconds from now.
The purpose of this is to keep the session store from being updated
when nothing else in the session is updated.
Devin Austin (dhoss) <dhoss@cpan.org>
+Robert Rothenberg <rrwo@cpan.org>
+
=head1 COPYRIGHT & LICENSE
Copyright (c) 2005 the aforementioned authors. All rights