$file->delete_tags($delete_tags, 0) if($delete_tags);
$file->delete_tags($delete_tagvals, 1) if($delete_tagvals);
$file->delete_tags($overwrite_tagvals, 1) if($overwrite_tagvals);
$file->delete_tags($delete_tags, 0) if($delete_tags);
$file->delete_tags($delete_tagvals, 1) if($delete_tagvals);
$file->delete_tags($overwrite_tagvals, 1) if($overwrite_tagvals);