Relactating?

So I gave up breastfeeding pretty quickly. I had my daughter 9 months ago and saw a video about relactating after stopping breastfeeding. Has anyone ever done this with a pump? Or is it even possible since it’s been so long?

So the video said if you use a breast pump as often as your baby would eat as a newborn, your body will start producing milk again from the “demand” of the pump.

My reasoning is because of covid. I want my daughter to have my antibodies from the vaccine and the booster.