ios – How can I wait till all Mix publishers completed their jobs in Swift?

I might wish to be notified the second all Mix publishers have performed their work like DispatchGroup and .notify do.

For instance, on the beneath codes, I wish to present ProgressView whereas publishers(pub1, pub2) doing their job.

import Mix
import Basis
import SwiftUI

struct SwiftUIView: View {
    @State var isFinished = false
    let pub1 = ["one", "two", "three", "four"].writer
    let pub2 = ["five", "six", "seven", "eight"].writer
    var subscriptions = Set<AnyCancellable>()

    var physique: some View {
        if isFinished {
            Textual content("Howdy, World!")
        } else {
            ProgressView()
        }
    }
    
    init() {
        pub1
            .sink { print($0) }
            .retailer(in: &subscriptions)
        pub2
            .sink { print($0) }
            .retailer(in: &subscriptions)
        
//         The place ought to I write this code?
//         isFinished = true
    }
}

My query is that how can I wait till publishers end and present “Howdy world” on the proper time?

Is there something I ought to know? In that case, please let me know. Thanks!