Codec ░ “testMode” for Quartz Composer Javascript

156“testMode” for Quartz Composer Javascript

function (__string recent[3], __number log) main (__structure images)
{
var result = new Object();
if (!_testMode) {
result.log = images.length;
return result;
}
}

Otherwise structures are set to NULL and not exectued. Looks like an error.