Extend SnapKit with struct that is able to switch two sets of constraints

ConstraintSwitcher.swift

import SnapKit

struct ConstraintSwitcher {
    private var initialActive = [Constraint]()
    private var initialInactive = [Constraint]()
    private(set) var isInitialActive = true
    
    mutating func append(_ constraint: Constraint, active: Bool) {
        if active == isInitialActive {
            initialActive.append(constraint)
        } else {
            initialInactive.append(constraint)
        }
    }
    
    mutating func switchInitial(active: Bool) {
        if active {
            initialActive.forEach { $0.deactivate() }
            initialInactive.forEach { $0.activate() }
        } else {
            initialInactive.forEach { $0.deactivate() }
            initialActive.forEach { $0.activate() }
        }
        isInitialActive = active
    }
}