How to use renderContainedTypes method of without class

...306        renderInitializerProxy(),307        renderVariables(),308        defaultInitializer,309        renderMethods(),310        renderContainedTypes()311      ])312    } else {313      components.append(renderContainedTypes())314    }315    316    return String(lines: components, spacing: 2)317  }318  319  func renderContainedTypes() -> String {320    guard !mockableType.containedTypes.isEmpty else { return "" }321    let containedTypesSubstructure = mockableType.containedTypes322      .map({323        MockableTypeTemplate(mockableType: $0, mockedTypeNames: mockedTypeNames)324          .render().indent()325      })326    return String(lines: containedTypesSubstructure, spacing: 2)327  }328  329  func renderInitializerProxy() -> String {330    let isProxyable: (Method) -> Bool = {331      // This needs to be a designated initializer since if it's a convenience initializer, we can't332      // always infer what concrete argument values to pass to the designated initializer.333      $0.isDesignatedInitializer && $0.isMockable...

1import UIKit2class ViewController: UIViewController {3    override func viewDidLoad() {4        super.viewDidLoad()5    }6    override func didReceiveMemoryWarning() {7        super.didReceiveMemoryWarning()8    }

1import SwiftUI2struct ContentView : View {3    var body: some View {4        Text("Hello World")5    }6}7struct ContentView_Previews : PreviewProvider {8    static var previews: some View {9        ContentView()10    }11}12import SwiftUI13struct ContentView : View {14    var body: some View {15        Text("Hello World")16    }17}18struct ContentView_Previews : PreviewProvider {19    static var previews: some View {20        ContentView()21    }22}23import SwiftUI24struct ContentView : View {25    var body: some View {26        Text("Hello World")27    }28}29struct ContentView_Previews : PreviewProvider {30    static var previews: some View {31        ContentView()32    }33}34import SwiftUI35struct ContentView : View {36    var body: some View {37        Text("Hello World")38    }39}40struct ContentView_Previews : PreviewProvider {41    static var previews: some View {42        ContentView()43    }44}45import SwiftUI46struct ContentView : View {47    var body: some View {48        Text("Hello World")49    }50}51struct ContentView_Previews : PreviewProvider {52    static var previews: some View {53        ContentView()54    }55}56import SwiftUI57struct ContentView : View {58    var body: some View {59        Text("Hello World")60    }61}62struct ContentView_Previews : PreviewProvider {63    static var previews: some View {64        ContentView()65    }66}67import SwiftUI68struct ContentView : View {69    var body: some View {70        Text("Hello World")71    }72}73struct ContentView_Previews : PreviewProvider {74    static var previews: some View {75        ContentView()76    }77}78import SwiftUI79struct ContentView : View {

1import UIKit2import SwiftUI3struct ContentView : View {4    var body: some View {5        Text("Hello World")6    }7}8struct ContentView_Previews: PreviewProvider {9    static var previews: some View {10        ContentView()11    }12}13let view = ContentView()14let hostingController = UIHostingController(rootView: view)15struct ContentView2 : View {16    var body: some View {17        Text("Hello World")18    }19}20let view3 = ContentView2()21let hostingController2 = UIHostingController(rootView: view3)22let view5 = hostingController2.renderContainedView()23let hostingController3 = UIHostingController(rootView: view5)24import UIKit25import SwiftUI26class ViewController: UIViewController {27    override func viewDidLoad() {28        super.viewDidLoad()29        let view = ContentView()30        let hostingController = UIHostingController(rootView: view)31        let view3 = ContentView2()32        let hostingController2 = UIHostingController(rootView: view3)33        let view5 = hostingController2.renderContainedView()34        let hostingController3 = UIHostingController(rootView: view5)35    }36}37struct ContentView : View {38    var body: some View {39        Text("Hello World")40    }41}42struct ContentView_Previews: PreviewProvider {43    static var previews: some View {44        ContentView()45    }46}47struct ContentView2 : View {48    var body: some View {49        Text("Hello World")50    }51}52I am trying to use the renderContainedView() method of UIHostingController class. I am using the Swift 5.2. I am using the method in the following way

1struct Foo {2}3let foo = Foo(a: 1, b: "2")4let mirror = Mirror(reflecting: foo)5print(mirror.renderContainedTypes())6struct Foo {7}8let foo = Foo(a: 1, b: "2")9let mirror = Mirror(reflecting: foo)10print(mirror.renderContainedTypes())11struct Foo {12}13let foo = Foo(a: 1, b: "2")14let mirror = Mirror(reflecting: foo)15print(mirror.renderContainedTypes())16struct Foo {17}18let foo = Foo(a: 1, b: "2")19let mirror = Mirror(reflecting: foo)20print(mirror.renderContainedTypes())21struct Foo {22}23let foo = Foo(a: 1, b: "2")24let mirror = Mirror(reflecting: foo)25print(mirror.renderContainedTypes())26struct Foo {27}28let foo = Foo(a: 1, b: "2")29let mirror = Mirror(reflecting: foo)30print(mirror.renderContainedTypes())31struct Foo {32}33let foo = Foo(a: 1, b: "2")34let mirror = Mirror(reflecting: foo)35print(mirror.renderContainedTypes())36struct Foo {37}38let foo = Foo(a: 1, b: "2