Code:
## works okay
my $zip = Archive::Zip->new();
$zip->addTree("path/to/directory");
$zip->writeToFileNamed("holdzips/$drty.zip");
## I have tried this, but it errors
## (Can't call method "desiredCompressionLevel"
## without a package or object reference)
my $zip = Archive::Zip->new();
$zip->addTree("path/to/directory")->desiredCompressionLevel(9);
$zip->writeToFileNamed("holdzips/$drty.zip");

