reason cause wml to bomb out with the error
message:
** Slice:Error: Some slices were not closed:
** WML:Break: Error in Pass 9 (rc=1).
** WMK:Error: Error in WML (rc=256)
As a workaround delete them for now.
B<bio1> and B<bio2>, or 0 on failure, with NULL pointers stored into the
locations for B<bio1> and B<bio2>. Check the error stack for more information.
-[XXXXX: More return values need to be added here]
+XXXXX: More return values need to be added here
=head1 EXAMPLE