Yes. This article on the Mayo Clinic site suggests combining three approaches:
hormones before the baby's arrival, if there is time
pumping both before and after the baby's arrival
feeding the baby through a system that provides nursing pressure (such as this SNS, a bottle you wear around your neck with a thin tube you put on your nipple, so that the baby ...
There is no evidence:
"Despite a potential bit of miscommunication about the technique's effect on insomnia, there’s one thing I can be certain about – there doesn’t appear to be any reliable evidence that the 4-7-8 breathing method works."