@robert-hh thank you, I used pin.value(x) and it worked, I want to simulate an oscillation using to pins, first I will put the first pin to 1 and the second pin to 0, after a time I will interchange the values, I don´t know if this is the right way, and I don´t know which lopy pins can be better for this purpose.

Just in case anyone else searches for this. Yes pin.hold works during a deep sleep but as obvious as it is now it only works on pins in the RTC domain on the pinout (and naturally not the input only pins). You can set pin.hold on any pin but it's only effective on those.