Multiplier in Constraints

[rehannali]

Hi, how can we add multiplier to any constraint Example snapkit make.centerY.equalTo(self).multipliedBy(0.8)

Example native: selectionView.centerXAnchor.constraint(equalTo: safeArea.centerXAnchor, multiplier: 0.8).isActive = true

I don't found a way to add multiplier. It only have constant/padding to constraint.