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protocol CellType {
  static var identifier: String { get }
}

extension CellType {
  static var identifier: String { return "\(Self.self)" }
}

extension UITableView {
  func register<Cell>(forReuse cell: Cell.Type)

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import Alamofire
import SwiftyJSON

protocol NetworkClientType {
  func makeRequest<Response: JSONDecodable>(url: String,
                                            params: [String : AnyObject],
                                            callback: (Response?, ErrorType?) -> Void)
}

struct NetworkClient: NetworkClientType {

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let defaults = Defaults()
let hasLoggedIn = true
defaults.save(true, forKey: .LoggedIn)
defaults.save(false, forKey: .NotificationsEnabled)

let regularOrder = Order(item: "Cold Brew", size: .Large)
let alternateOrder = Order(item: "Latte", size: .Small)
defaults.save(regularOrder)
defaults.save(alternateOrder, forKey: .Alternate)

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let defaults = Defaults()
let person = Person(firstName: "Austin", lastName: "Feight", age: -3)
defaults.save(person)

let fetched: Person? = defaults.fetch(Person.self)
print("\(fetched!.firstName) \(fetched!.lastName) is \(fetched!.age) years old")
// Output: Austin Feight is -3 years old

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// Define Model
struct Person {
  let firstName: String
  let lastName: String
  let age: Int
}

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extension Person: DefaultConvertible {
  private static let firstNameKey = "first_name"
  private static let lastNameKey = "last_name"
  private static let ageKey = "age"
  
  var serialized: [String : AnyObject] {
    return
      [
        Person.firstNameKey: firstName as AnyObject,
        Person.lastNameKey: lastName as AnyObject,

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struct Person {
  var firstName: String
  var lastName: String
  var age: String
}

let person = Person(firstName: "Austin", lastName: "Feight", age: -3)
UserDefaults.standard.set(person)

let fetchedPerson = UserDefaults.standard.fetch(Person.self)

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protocol DefaultConvertible {
  var serialized: [String : AnyObject] { get }
  init?(dictionary: [String : AnyObject])
}

class Defaults {
  let userDefaults = NSUserDefaults.standardUserDefaults()

  func save<T: DefaultConvertible>(toSave: T)
  {

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- (void)viewDidLoad
{
  [super viewDidLoad];
  _multipeerController = [MultipeerController.alloc init];
  _multipeerController.delegate = self;
  [_multipeerController start];
  _graphManager = [GraphManager.alloc init];
  _graphManager.delegate = self;
  _myPeerID = [MCPeerID.alloc init];
  _selectedPeer = -1;

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override func viewDidLoad()
{
  super.viewDidLoad()
  
  initMultipeerDependencies()
  
  configureTableView()
  
  addSegmentedControl()
  addDismissKeyboardRecognizer()