gistfile1.txt

// A result object that comes from the network.
// The contents are irrelevant for this example.
struct Result {
  let text: String
  let someOtherThing: String
}

// An object that can get data from the network 
struct Fetcher {
  /**
  Performs a network query, and returns 0 or more results as an array.
  - Parameter query: The query to complete. Comes from the UI
  - Returns: An observable with 0 or more results
  */
  static func performQuery(query: String) -> Observable<[Result]> {
    // Go to the network
    // Get data
    // Transform into Result objects
    // If the returned Observable is disposed, it will cancel the network request.
  }
}

/**
Some UI View Controller that has a UITextField on it
*/
class ViewController: UIViewController {
  weak var textField: UITextField!
  
  override func viewDidLoad() {
    let o: Observable<[String]> = 
      textField.rx_text
        .throttle(0.3)
        .distinctUntilChanged()
        .flatMapLatest { query in
            Fetcher.performQuery(query)
        }.map { 
          // Extract the text out of this object; standard Swift.
          $0.map { $0.text } 
        }
    // JAMIE: What are we doing with o??
      }
}