diff --git a/lib/appium-driver.d.ts b/lib/appium-driver.d.ts
index 0403180..4581d48 100644
--- a/lib/appium-driver.d.ts
+++ b/lib/appium-driver.d.ts
@@ -163,7 +163,7 @@ export declare class AppiumDriver {
      */
     startRecordingVideo(videoName: any): any;
     stopRecordingVideo(): Promise<any>;
-    private compare;
+    private compare(imageName, timeOutSeconds?, tolerance?, rect?, toleranceType?);
     prepareImageToCompare(filePath: string, rect: IRectangle): Promise<void>;
     takeScreenshot(fileName: string): Promise<string>;
     logScreenshot(fileName: string): Promise<string>;
@@ -183,10 +183,10 @@ export declare class AppiumDriver {
     resetApp(): Promise<void>;
     init(): Promise<void>;
     quit(): Promise<void>;
-    private static applyAdditionalSettings;
-    private convertArrayToUIElements;
-    private static configureLogging;
-    private getExpectedImagePath;
+    private static applyAdditionalSettings(args);
+    private convertArrayToUIElements(array, searchM, args);
+    private static configureLogging(driver, verbose);
+    private getExpectedImagePath(imageName);
     /**
     * Wait specific amount of time before continue execution
     * @param miliseconds
diff --git a/lib/appium-server.d.ts b/lib/appium-server.d.ts
index 149bde1..3c2c1d2 100644
--- a/lib/appium-server.d.ts
+++ b/lib/appium-server.d.ts
@@ -15,9 +15,9 @@ export declare class AppiumServer {
     readonly server: child_process.ChildProcess;
     hasStarted: boolean;
     start(port: any, deviceManager?: IDeviceManager): Promise<boolean | this>;
-    private startAppiumServer;
+    private startAppiumServer(logLevel, isSauceLab);
     stop(): Promise<{}>;
-    private prepDevice;
-    private prepApp;
-    private resolveAppiumDependency;
+    private prepDevice(deviceManager);
+    private prepApp();
+    private resolveAppiumDependency();
 }
diff --git a/lib/image-helper.d.ts b/lib/image-helper.d.ts
index 5b2d5df..7d6ba5c 100644
--- a/lib/image-helper.d.ts
+++ b/lib/image-helper.d.ts
@@ -18,8 +18,8 @@ export declare class ImageHelper {
         width: any;
         height: any;
     };
-    private static getOffsetPixels;
-    private runDiff;
+    private static getOffsetPixels(args);
+    private runDiff(diffOptions, diffImage);
     compareImages(actual: string, expected: string, output: string, valueThreshold?: number, typeThreshold?: any): Promise<boolean>;
     clipRectangleImage(rect: IRectangle, path: string): Promise<{}>;
     readImage(path: string): Promise<any>;
diff --git a/lib/locators.d.ts b/lib/locators.d.ts
index 124d2a9..d4f7f3b 100644
--- a/lib/locators.d.ts
+++ b/lib/locators.d.ts
@@ -8,7 +8,7 @@ export declare class Locator {
     readonly image: string;
     readonly locators: Map<string, string>;
     getElementByName(name: any): string;
-    private loadAndroidElements;
-    private loadIOSElements;
-    private createIosElement;
+    private loadAndroidElements();
+    private loadIOSElements();
+    private createIosElement(element);
 }
diff --git a/lib/ns-capabilities.d.ts b/lib/ns-capabilities.d.ts
index 03f328d..47dc095 100644
--- a/lib/ns-capabilities.d.ts
+++ b/lib/ns-capabilities.d.ts
@@ -37,6 +37,7 @@ export declare class NsCapabilities implements INsCapabilities {
     private _device;
     private _deviceManager;
     private _exceptions;
+    private _imagesPath;
     constructor(_parser: INsCapabilitiesArgs);
     readonly path: string;
     readonly projectDir: string;
@@ -70,13 +71,14 @@ export declare class NsCapabilities implements INsCapabilities {
     readonly startSession: boolean;
     deviceManager: IDeviceManager;
     readonly isValidated: boolean;
+    readonly imagesPath: string;
     extend(args: INsCapabilities): this;
     validateArgs(): void;
-    private isAndroidPlatform;
-    private shouldSetFullResetOption;
-    private setAutomationName;
+    private isAndroidPlatform();
+    private shouldSetFullResetOption();
+    private setAutomationName();
     tryGetAndroidApiLevel(): number;
-    private resolveApplication;
-    private checkMandatoryCapabiliies;
-    private throwExceptions;
+    private resolveApplication();
+    private checkMandatoryCapabiliies();
+    private throwExceptions();
 }
diff --git a/lib/ui-element.d.ts b/lib/ui-element.d.ts
index 1df0439..e62797c 100644
--- a/lib/ui-element.d.ts
+++ b/lib/ui-element.d.ts
@@ -9,7 +9,7 @@ export declare class UIElement {
     private _args;
     private _searchMethod;
     private _searchParams;
-    private _index?;
+    private _index;
     constructor(_element: any, _driver: any, _wd: any, _webio: any, _args: INsCapabilities, _searchMethod: string, _searchParams: string, _index?: number);
     /**
      * Click on element
diff --git a/lib/ui-element.ts b/lib/ui-element.ts
index 2c1efb9..1feedd1 100644
--- a/lib/ui-element.ts
+++ b/lib/ui-element.ts
@@ -92,6 +92,7 @@ export class UIElement {
      * Shows if element is displayed. Returns true or false. If the element doesn't exist it will return false
      */
     public async isDisplayed() {
+        const displaySize = await this._driver.getWindowSize();
         const el = (await this.element());
         let isDisplayed = true;
         if (!el || el === null) {
@@ -99,8 +100,11 @@ export class UIElement {
         }
 
         try {
-            isDisplayed = (await el.isDisplayed());
+            const elemCoordinates = await this.getRectangle();
+            isDisplayed = (await el.isDisplayed()) && elemCoordinates.x >= 0 && elemCoordinates.x < displaySize.width
+                && elemCoordinates.y >= 0 && elemCoordinates.y < displaySize.height;
         } catch (error) {
+            console.log("ERROR: " + error);
             isDisplayed = false;
         }