sub index_records {
my ( $self, $biblionumbers, $op, $server, $records ) = @_;
$biblionumbers = [$biblionumbers] if ref $biblionumbers ne 'ARRAY' && defined $biblionumbers;
$records = [$records] if ref $biblionumbers ne 'ARRAY' && defined $records;
$records = [$records] if ref $records ne 'ARRAY' && defined $records;
if ( $op eq 'specialUpdate' ) {
unless ($records) {
foreach my $biblionumber ( @$biblionumbers ){
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