my $invindex = KinoSearch::Store::FSInvIndex->new(
        path   => '/path/to/invindex',
        create => 0,
    );
    my @list_of_filenames = $invindex->list;
    foreach my $filename (@list_of_filenames) {
        my $file_data = $invindex->slurp_file($filename);
        # Do stuff with data
    }
    $invindex->close;