Hello Charlotte,
Oh, I see. Now I'm clear what you are talking about.
Yes, state load and state save are optional functions to store status in NVM area like EEPROM.
We have some example with EEPROM for BSEC Library based on Arduino.
https://github.com/BoschSensortec/BSEC-Arduino-library/blob/master/examples/
Hope it helps you.
Thanks,
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