ViewController.swift

final class ViewController: UITableViewController {

  var viewModel: ViewModel!
  
  let disposeBag = DisposeBag()
  
  override func viewDidLoad() {
	super.viewDidLoad()
    
    	let input = viewModel.Input()
    	let output = viewModel.transform(input: input)
    	output.bind(to: tableView.rx.items(cellIdentifier: “Cell")) { row, item, cell in
      		cell.textLabel!?text = "\(item) @ row \(row)"
    	}
    	.disposed(by: disposeBag)
  }
}

ViewModel.swift

final class ViewModel: ViewModelType {
  struct Input {
    let text: Driver<String>
  }
  
  struct Output {
    let items: Driver<[String]>
  }
  
  func transform(input: Input) -> Output {
    let items = input
      .orEmpty
      .throttle(0.3, scheduler: Mainscheduler.instance)
      .distinctUntilChanged()
      .map{ ["1", "2", "3"] }
    return Output(items: items)
  }
}

ViewModelType.swift

protocol ViewModelType {
  associatedtype Input
  associatedtype Output
  
  func transform(input: Input) -> Output
}