Binding equivalent for UIKit?

[acosmicflamingo]

I noticed in isowords' settingsReducer that it utilizes BindingAction quite a bit, which is rather nifty since it saves the number of actions one has to add in the SettingsAction enum (i.e. SettingsAction.binding(<a/b/c/>) is 1 action vs SettingsAction.a, SettingsAction.b, SettingsAction.c is 3 actions).

Is there an equivalent BindingAction that exists in UIKit? If not, am I taking the right approach in UIKit to update the app color scheme?

SwiftUI:
Reducer {
  switch action {
  ...
  case .binding(\.$userSettings.colorScheme):  <= can be modified directly in the View struct
    return environment.setUserInterfaceStyle(state.userSettings.colorScheme.userInterfaceStyle)
        .fireAndForget()
  }
}

UIKit:
Reducer {
  switch action {

  // required because I can't modify state in View Controller
  case .toggleColorSchemeButtonPressed:
    let colorScheme = state.userSettings.colorScheme.
    state.userSettings.colorScheme = colorScheme == .dark ? .light : .dark
    return Effect(value: SettingsAction.updateAppColorScheme)

  case .updateAppColorScheme:
    return environment.setUserInterfaceStyle(state.userSettings.colorScheme.userInterfaceStyle)
      .subscribe(on: environment.mainQueue)
      .fireAndForget()
  }
}

[acosmicflamingo]

Closing since the equivalent is using Combine and anything mentioned in this discussion reflects the older way of handling binding.