Recovery priv_validator_key.json

Is it possible to somehow restore priv_validator_key.json?

Did you lose the priv_validator_key.json?

As far as I am aware there is no method to recover it. There is a command for creating a validator with trying to recover the accompanying files via the flag “–recover” (and I don’t mean the command “[binary] keys add … --recover”) but I have not seen it working until now.