}
);
my $biblio = Koha::Biblios->find( $biblionumber, { prefetch => [ 'metadata', 'items' ] } );
unless ( $biblio ) {
print $query->redirect("/cgi-bin/koha/errors/404.pl");
exit;
my $patron = Koha::Patrons->find($loggedinuser);
my $opachiddenitems_rules;
-