diff --git a/lib/browser.ts b/lib/browser.ts
index 174272ae2..97065f000 100644
--- a/lib/browser.ts
+++ b/lib/browser.ts
@@ -66,8 +66,54 @@ export class AbstractWebDriver {
 }
 
 export class AbstractExtendedWebDriver extends AbstractWebDriver {
-  getNetworkConnection: () => wdpromise.Promise<number>;
-  setNetworkConnection: (type: number) => wdpromise.Promise<void>;
+  getNetworkConnection: () => wdpromise.Promise<0|1|2|3|4|5|6|7>;
+  setNetworkConnection:
+      (typeOrAirplaneMode: 0|1|2|3|4|5|6|7|boolean, wifi?: boolean,
+       data?: boolean) => wdpromise.Promise<void>;
+  toggleAirplaneMode: () => wdpromise.Promise<void>;
+  toggleWiFi: () => wdpromise.Promise<void>;
+  toggleData: () => wdpromise.Promise<void>;
+  toggleLocationServices: () => wdpromise.Promise<void>;
+  getGeolocation: () => wdpromise.Promise<{latitude: number, longitude: number, altitude: number}>;
+  setGeolocation:
+      (latitude?: number, longitude?: number, altitude?: number) => wdpromise.Promise<void>;
+  getCurrentDeviceActivity: () => wdpromise.Promise<string>;
+  startDeviceActivity:
+      (appPackage: string, appActivity: string, appWaitPackage?: string,
+       appWaitActivity?: string) => wdpromise.Promise<void>;
+  getAppiumSettings: () => wdpromise.Promise<{[name: string]: any}>;
+  setAppiumSettings: (settings: {[name: string]: any}) => wdpromise.Promise<void>;
+  getCurrentContext: () => wdpromise.Promise<string>;
+  selectContext: (name: string) => wdpromise.Promise<void>;
+  listContexts: () => wdpromise.Promise<string[]>;
+  getScreenOrientation: () => wdpromise.Promise<'LANDSCAPE'|'PORTRAIT'>;
+  setScreenOrientation: (orientation: string) => wdpromise.Promise<void>;
+  isDeviceLocked: () => wdpromise.Promise<boolean>;
+  lockDevice: (delay?: number) => wdpromise.Promise<void>;
+  unlockDevice: () => wdpromise.Promise<void>;
+  installApp: (appPath: string) => wdpromise.Promise<void>;
+  isAppInstalled: (bundleId: string) => wdpromise.Promise<boolean>;
+  removeApp: (appId: string) => wdpromise.Promise<void>;
+  pullFileFromDevice: (path: string) => wdpromise.Promise<string>;
+  pullFolderFromDevice: (path: string) => wdpromise.Promise<any>;
+  pushFileToDevice: (path: string, base64Data: string) => wdpromise.Promise<void>;
+  uploadFile: (base64Data: string) => wdpromise.Promise<void>;
+  switchToParentFrame: () => wdpromise.Promise<void>;
+  fullscreen: () => wdpromise.Promise<void>;
+  sendAppToBackground: (delay?: number) => wdpromise.Promise<void>;
+  closeApp: () => wdpromise.Promise<void>;
+  getAppStrings: (language?: string) => wdpromise.Promise<string[]>;
+  launchSession: () => wdpromise.Promise<void>;
+  resetApp: () => wdpromise.Promise<void>;
+  hideSoftKeyboard:
+      (strategy?: 'default'|'tapOutside'|'tapOut'|'swipeDown'|'pressKey'|'press',
+       key?: string) => wdpromise.Promise<void>;
+  getDeviceTime: () => wdpromise.Promise<string>;
+  openDeviceNotifications: () => wdpromise.Promise<void>;
+  rotationGesture:
+      (x?: number, y?: number, duration?: number, rotation?: number,
+       touchCount?: 1|2|3|4|5) => wdpromise.Promise<void>;
+  shakeDevice: () => wdpromise.Promise<void>;
 }
 
 /**