os
os.clock
same as os.clocksource
os.date
same as os.datesource
os.difftime
same as os.difftimesource
os.remove_data
function os.remove_data(filename: string): anyfilename:string
Returns any (may be nil)
os.remove_mod
function os.remove_mod(filename: string): anyfilename:string
Returns any (may be nil)
os.time
same as os.timesource