i'm trying to use datetimeto() and datetimefrom() from date and time library into my script. but when I try it, I got lexical error even though I only try it by copy-pasting the example function in user manual. or is this already patched out in 2.47? I'm still on 2.45.1 because I'm afraid upgrading the version might have a detrimental effect to my current project.