SwiftUI @Binding Initialize

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When you use your LoggedInView in your app you do need to provide some binding, such as an @State from a previous view or an @EnvironmentObject.

For the special case of the PreviewProvider where you just need a fixed value you can use .constant(false)

E.g.

#if DEBUG
struct LoggedInView_Previews : PreviewProvider {
    static var previews: some View {
        LoggedInView(dismissView: .constant(false))
    }
}
#endif

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