Combine function to observe parameters in @observableobject

CombinePublisher.swift

// MARK: - Combine
    /// Combine function to observe parameters in @ObservableObject
    ///
    /// Example:
    /// _ = newBindChangePublisher(for: <yourState object>, publisher: <yourStateObject>.$<parameter>.eraseToAnyPublisher(), keyPath: \.<parameter>, with: 0.4, handleAction: { [weak self] <nameOfParametersValue> in
    /// guard let self = self else { return }
    /// // perform action with the <nameOfParametersValue>
    /// })
    ///
    /// - Parameters:
    ///   - state: your @ObservableObject state
    ///   - publisher: @Published parameter in your state
    ///   - keyPath: source to the @Published parameter
    ///   - debounce: time between pushing new changes (0.4, 1 or 0 if you need to immediately push changes)
    ///   - handleAction: action with new value inside callback
    /// - Returns: publisher for your ViewModel, that you place inside init()
    func newBindChangePublisher<Publisher: Equatable, State: ObservableObject>(for state: <YourStateObject>, publisher: AnyPublisher<Publisher, Never>, keyPath: ReferenceWritableKeyPath<<YourStateObject>, Publisher>, with debounce: Double, handleAction: @escaping (Publisher) -> Void) -> AnyPublisher<T, Never> {
        publisher
            .receive(on: RunLoop.main)
            .sink { value in
                handleAction(value)
            }
            .store(in: &cancellables)

        return state.objectWillChange
            .compactMap { _ in
                state[keyPath: keyPath] as? T
            }
            .debounce(for: RunLoop.SchedulerTimeType.Stride(debounce), scheduler: RunLoop.main)
            .removeDuplicates()
            .eraseToAnyPublisher()
    }