sub get_from_biblionumber {
my ($class, $bibnum, %options) = @_;
my $marc = get_marc_biblio($bibnum, %options);
my $marc = $class->get_marc_biblio($bibnum, %options);
return $class->new($marc, $bibnum);
}
$next = sub {
my $r = shift @biblionumbers;
return () unless defined $r;
return ($r, Koha::Biblio->get_marc_biblio($r, item_data => 1));
return ($r, Koha::Biblio->get_from_biblionumber($r, item_data => 1 ));
};
} else {
my $records = Koha::Biblio->get_all_biblios_iterator();
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