How to Reset I2C

Hi all,
How to reset i2c bus whitout reset mcu?

Kind of guessing here, but you could see if this works.

      - lambda: |-

Doesn’t work. Wire.end() - not allowed.
I working on the project where several board with I/O Expander connected by I2C. Once one of the board lost power (I was not planning to make back-up power supply for it) and power is restored. I can’t control outputs any more. I wish I can re-initialize expander, but can’t find solution.