warm_start option for Command-Line

There does not appear to be a documented command-line option to enable warm_start.

I am running TPOT from the command line and my pipeline optimisation can take several days.

Need to reboot to apply security updates, so would like to be able to resume TPOT optimization from checkpoint.

As far as I can tell, the checkpoint folder only contains the best single individual pipeline at each checkpoint time, so TPOT would need to cache the whole scored population to be able to properly warm_start. That means specifying the warm_start on command line would imply different default behaviour (i.e. -memory option)