The documentation at https://docs.micropython.org/en/latest/pyboard/general.html describes a "filesystem reset" boot mode which can be triggered by holding down the user switch during the power up boot sequence:

filesystem reset: resets the flash filesystem to its factory state, then boots in safe mode.

For supported MicroPython boards that do not have a user switch (e.g. SparkFun MicroMod STM32 Processor), is there any way to trigger a "filesystem reset" from software?

If not, would it be possible to add a new machine.factory_reset() function to enable this? (similar to the machine.reset() and machine.soft_reset() functions described in https://docs.micropython.org/en/latest/library/machine.html?highlight=reset#machine.reset)

For the sake of completeness, it would also be nice to support resetting into the "safe boot" boot mode from software as well through something like a machine.safe_reset() function.