setPasskeyAuthenticationAnchor

@available(iOS 16, *)
public func setPasskeyAuthenticationAnchor(
    _ anchor: ASPresentationAnchor
) throws

// Basic usage in UIKit
if #available(iOS 16, *) {
    do {
        // Set the authentication anchor using the main window
        try portal.setPasskeyAuthenticationAnchor(view.window!)
    } catch {
        print("Error setting passkey authentication anchor: \(error)")
    }
}

// Complete setup in UIViewController
class MyViewController: UIViewController {
    func setupPasskeys() {
        if #available(iOS 16, *) {
            do {
                // Configure passkey settings
                try portal.setPasskeyConfiguration(
                    relyingParty: "portalhq.io",
                    webAuthnHost: "backup.web.portalhq.io"
                )

                // Set the authentication anchor
                guard let window = view.window else {
                    print("Error: No window available")
                    return
                }
                try portal.setPasskeyAuthenticationAnchor(window)

                print("Passkey authentication setup complete")
            } catch {
                print("Error setting up passkey authentication: \(error)")
            }
        }
    }
}

// Usage in SwiftUI
import SwiftUI

struct PasskeyView: View {
    @Environment(\.window) var window: UIWindow?

    func setupPasskeyAuth() {
        if #available(iOS 16, *) {
            do {
                guard let window = window else {
                    print("Error: No window available")
                    return
                }
                try portal.setPasskeyAuthenticationAnchor(window)
            } catch {
                print("Error setting passkey authentication anchor: \(error)")
            }
        }
    }

    var body: some View {
        Text("Passkey Setup")
            .onAppear {
                setupPasskeyAuth()
            }
    }
}