var backItem: WKBackForwardListItem! { get }

var backItem: WKBackForwardListItem? { get }

var backList: [AnyObject]! { get }

var backList: [AnyObject] { get }

var currentItem: WKBackForwardListItem! { get }

var currentItem: WKBackForwardListItem? { get }

var forwardItem: WKBackForwardListItem! { get }

var forwardItem: WKBackForwardListItem? { get }

var forwardList: [AnyObject]! { get }

var forwardList: [AnyObject] { get }

func itemAtIndex(_ index: Int) -> WKBackForwardListItem!

func itemAtIndex(_ index: Int) -> WKBackForwardListItem?

@NSCopying var URL: NSURL! { get }

@NSCopying var URL: NSURL { get }

@NSCopying var initialURL: NSURL! { get }

@NSCopying var initialURL: NSURL { get }

var title: String! { get }

var title: String? { get }

@NSCopying var request: NSURLRequest! { get }

@NSCopying var request: NSURLRequest { get }

@NSCopying var request: NSURLRequest! { get }

@NSCopying var request: NSURLRequest { get }

@NSCopying var sourceFrame: WKFrameInfo! { get }

@NSCopying var sourceFrame: WKFrameInfo? { get }

@NSCopying var targetFrame: WKFrameInfo! { get }

@NSCopying var targetFrame: WKFrameInfo? { get }

optional func webView(_ webView: WKWebView!, decidePolicyForNavigationAction navigationAction: WKNavigationAction!, decisionHandler decisionHandler: ((WKNavigationActionPolicy) -> Void)!)

optional func webView(_ webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler decisionHandler: (WKNavigationActionPolicy) -> Void)

optional func webView(_ webView: WKWebView!, decidePolicyForNavigationResponse navigationResponse: WKNavigationResponse!, decisionHandler decisionHandler: ((WKNavigationResponsePolicy) -> Void)!)

optional func webView(_ webView: WKWebView, decidePolicyForNavigationResponse navigationResponse: WKNavigationResponse, decisionHandler decisionHandler: (WKNavigationResponsePolicy) -> Void)

optional func webView(_ webView: WKWebView!, didCommitNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView, didCommitNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView!, didFailNavigation navigation: WKNavigation!, withError error: NSError!)

optional func webView(_ webView: WKWebView, didFailNavigation navigation: WKNavigation!, withError error: NSError)

optional func webView(_ webView: WKWebView!, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError!)

optional func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError)

optional func webView(_ webView: WKWebView!, didFinishNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView, didFinishNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView!, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge!, completionHandler completionHandler: ((NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)!)

optional func webView(_ webView: WKWebView, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge, completionHandler completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential!) -> Void)

optional func webView(_ webView: WKWebView!, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView!, didStartProvisionalNavigation navigation: WKNavigation!)

optional func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!)

@NSCopying var response: NSURLResponse! { get }

@NSCopying var response: NSURLResponse { get }

@NSCopying var body: AnyObject! { get }

@NSCopying var body: AnyObject { get }

@NSCopying var frameInfo: WKFrameInfo! { get }

@NSCopying var frameInfo: WKFrameInfo { get }

var name: String! { get }

var name: String { get }

weak var webView: WKWebView! { get }

weak var webView: WKWebView? { get }

func userContentController(_ userContentController: WKUserContentController!, didReceiveScriptMessage message: WKScriptMessage!)

func userContentController(_ userContentController: WKUserContentController, didReceiveScriptMessage message: WKScriptMessage)

optional func webView(_ webView: WKWebView!, createWebViewWithConfiguration configuration: WKWebViewConfiguration!, forNavigationAction navigationAction: WKNavigationAction!, windowFeatures windowFeatures: WKWindowFeatures!) -> WKWebView!

optional func webView(_ webView: WKWebView, createWebViewWithConfiguration configuration: WKWebViewConfiguration, forNavigationAction navigationAction: WKNavigationAction, windowFeatures windowFeatures: WKWindowFeatures) -> WKWebView?

optional func webView(_ webView: WKWebView!, runJavaScriptAlertPanelWithMessage message: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: (() -> Void)!)

optional func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: () -> Void)

optional func webView(_ webView: WKWebView!, runJavaScriptConfirmPanelWithMessage message: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: ((Bool) -> Void)!)

optional func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: (Bool) -> Void)

optional func webView(_ webView: WKWebView!, runJavaScriptTextInputPanelWithPrompt prompt: String!, defaultText defaultText: String!, initiatedByFrame frame: WKFrameInfo!, completionHandler completionHandler: ((String!) -> Void)!)

optional func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler completionHandler: (String!) -> Void)

func addScriptMessageHandler(_ scriptMessageHandler: WKScriptMessageHandler!, name name: String!)

func addScriptMessageHandler(_ scriptMessageHandler: WKScriptMessageHandler, name name: String)

func addUserScript(_ userScript: WKUserScript!)

func addUserScript(_ userScript: WKUserScript)

func removeScriptMessageHandlerForName(_ name: String!)

func removeScriptMessageHandlerForName(_ name: String)

var userScripts: [AnyObject]! { get }

var userScripts: [AnyObject] { get }

var source: String! { get }

var source: String { get }

init(source source: String!, injectionTime injectionTime: WKUserScriptInjectionTime, forMainFrameOnly forMainFrameOnly: Bool)

init(source source: String, injectionTime injectionTime: WKUserScriptInjectionTime, forMainFrameOnly forMainFrameOnly: Bool)

weak var UIDelegate: WKUIDelegate!

weak var UIDelegate: WKUIDelegate?

@NSCopying var URL: NSURL! { get }

@NSCopying var URL: NSURL? { get }

var backForwardList: WKBackForwardList! { get }

var backForwardList: WKBackForwardList { get }

@NSCopying var configuration: WKWebViewConfiguration! { get }

@NSCopying var configuration: WKWebViewConfiguration { get }

func evaluateJavaScript(_ javaScriptString: String!, completionHandler completionHandler: ((AnyObject!, NSError!) -> Void)!)

func evaluateJavaScript(_ javaScriptString: String, completionHandler completionHandler: ((AnyObject!, NSError!) -> Void)?)

init(frame frame: CGRect, configuration configuration: WKWebViewConfiguration!)

init(frame frame: CGRect, configuration configuration: WKWebViewConfiguration)

func goBack() -> WKNavigation!

func goBack() -> WKNavigation?

func goForward() -> WKNavigation!

func goForward() -> WKNavigation?

func goToBackForwardListItem(_ item: WKBackForwardListItem!) -> WKNavigation!

func goToBackForwardListItem(_ item: WKBackForwardListItem) -> WKNavigation?

func loadHTMLString(_ string: String!, baseURL baseURL: NSURL!) -> WKNavigation!

func loadHTMLString(_ string: String, baseURL baseURL: NSURL?) -> WKNavigation?

func loadRequest(_ request: NSURLRequest!) -> WKNavigation!

func loadRequest(_ request: NSURLRequest) -> WKNavigation?

weak var navigationDelegate: WKNavigationDelegate!

weak var navigationDelegate: WKNavigationDelegate?

func reload() -> WKNavigation!

func reload() -> WKNavigation?

func reloadFromOrigin() -> WKNavigation!

func reloadFromOrigin() -> WKNavigation?

var scrollView: UIScrollView! { get }

var scrollView: UIScrollView { get }

var title: String! { get }

var title: String? { get }

var preferences: WKPreferences!

var preferences: WKPreferences

var processPool: WKProcessPool!

var processPool: WKProcessPool

var userContentController: WKUserContentController!

var userContentController: WKUserContentController

var allowsResizing: NSNumber! { get }

var allowsResizing: NSNumber? { get }

var height: NSNumber! { get }

var height: NSNumber? { get }

var menuBarVisibility: NSNumber! { get }

var menuBarVisibility: NSNumber? { get }

var statusBarVisibility: NSNumber! { get }

var statusBarVisibility: NSNumber? { get }

var toolbarsVisibility: NSNumber! { get }

var toolbarsVisibility: NSNumber? { get }

var width: NSNumber! { get }

var width: NSNumber? { get }

var x: NSNumber! { get }

var x: NSNumber? { get }

var y: NSNumber! { get }

var y: NSNumber? { get }