How to use this.queryAppState method in Appium Android Driver

1var webdriver = require('selenium-webdriver');2var By = webdriver.By;3var until = webdriver.until;4var driver = new webdriver.Builder()5    .forBrowser('chrome')6    .build();7driver.findElement(By.name('q')).sendKeys('webdriver');8driver.findElement(By.name('btnG')).click();9driver.wait(until.titleIs('webdriver - Google Search'), 1000);10driver.quit();11var webdriver = require('selenium-webdriver');12var By = webdriver.By;13var until = webdriver.until;14var driver = new webdriver.Builder()15    .forBrowser('chrome')16    .build();17driver.findElement(By.name('q')).sendKeys('webdriver');18driver.findElement(By.name('btnG')).click();19driver.wait(until.titleIs('webdriver - Google Search'), 1000);20driver.quit();21var webdriver = require('selenium-webdriver');22var By = webdriver.By;23var until = webdriver.until;24var driver = new webdriver.Builder()25    .forBrowser('chrome')26    .build();27driver.findElement(By.name('q')).sendKeys('webdriver');28driver.findElement(By.name('btnG')).click();29driver.wait(until.titleIs('webdriver - Google Search'), 1000);30driver.quit();31var webdriver = require('selenium-webdriver');32var By = webdriver.By;33var until = webdriver.until;34var driver = new webdriver.Builder()35    .forBrowser('chrome')36    .build();37driver.findElement(By.name('q')).sendKeys('webdriver');38driver.findElement(By.name('btnG')).click();39driver.wait(until.titleIs('webdriver - Google Search'), 1000);40driver.quit();41var webdriver = require('selenium-webdriver');42var By = webdriver.By;43var until = webdriver.until;44var driver = new webdriver.Builder()45    .forBrowser('chrome')46    .build();47driver.findElement(By.name('q')).sendKeys('webdriver');48driver.findElement(By.name('btnG')).click();49driver.wait(until.titleIs('webdriver - Google Search'), 1000);

1var wd = require('wd');2var assert = require('assert');3var driver = wd.promiseChainRemote('localhost', 4723);4var desired = {5};6    .init(desired)7    .then(function () {8            .elementByAccessibilityId('App')9            .then(function (el) {10                return el.click();11            })12            .then(function () {13                    .elementByAccessibilityId('Activity')14                    .then(function (el) {15                        return el.click();16                    })17            })18            .then(function () {19                    .elementByAccessibilityId('Custom Title')20                    .then(function (el) {21                        return el.click();22                    })23            })24            .then(function () {25                    .elementByAccessibilityId('Custom Title')26                    .then(function (el) {27                        return el.click();28                    })29            })30            .then(function () {31                    .elementByAccessibilityId('Custom Title')32                    .then(function (el) {33                        return el.click();34                    })35            })36            .then(function () {37                    .elementByAccessibilityId('Custom Title')38                    .then(function (el) {39                        return el.click();40                    })41            })42            .then(function () {43                    .elementByAccessibilityId('Custom Title')44                    .then(function (el) {45                        return el.click();46                    })47            })48            .then(function () {49                    .elementByAccessibilityId('Custom Title')50                    .then(function (el) {51                        return el.click();52                    })53            })54            .then(function () {55                    .elementByAccessibilityId('Custom Title')56                    .then(function (el) {57                        return el.click();58                    })59            })60            .then(function () {61                    .elementByAccessibilityId('Custom Title')62                    .then(function (el) {63                        return el.click();64                    })65            })66            .then(function () {67                    .elementByAccessibilityId('Custom Title')68                    .then(function (el) {

1describe('Test Appium Android Driver', function() {2    this.timeout(60000);3    let driver;4    let allPassed = true;5    before(async function() {6        const caps = {7        };8        driver = await wdio.remote({9        });10    });11    after(async function() {12        await driver.deleteSession();13    });14    afterEach(function() {15        allPassed = allPassed && (this.currentTest.state === 'passed');16    });17    it('should query app state', async function() {18        const appState = await driver.queryAppState('com.example.myapplication');19        expect(appState).to.equal('FOREGROUND');20    });21});22[0-0] 2020-09-11T12:29:34.904Z INFO webdriver: DATA { capabilities: { alwaysMatch: { platformName: 'Android', platformVersion: '9', deviceName: 'Android Emulator', app: '/Users/xyz/Downloads/app-debug.apk', automationName: 'UiAutomator2', appPackage: 'com.example.myapplication', appActivity: 'com.example.myapplication.MainActivity', autoGrantPermissions: true }, firstMatch: [ {} ] }, desiredCapabilities: { platformName: 'Android', platformVersion: '9', deviceName: 'Android Emulator', app: '/Users/xyz/Downloads/app-debug.apk', automationName: 'UiAutomator2', appPackage: 'com.example.myapplication', appActivity: 'com.example.myapplication.MainActivity', autoGrantPermissions: true } }

1var driver = new AndroidDriver();2var queryAppState = driver.queryAppState();3queryAppState.then(function (state) {4  console.log(state);5});6var driver = new AndroidDriver();7var queryAppState = driver.queryAppState();8queryAppState.then(function (state) {9  console.log(state);10});11var driver = new AndroidDriver();12var queryAppState = driver.queryAppState();13queryAppState.then(function (state) {14  console.log(state);15});16var driver = new AndroidDriver();17var queryAppState = driver.queryAppState();18queryAppState.then(function (state) {19  console.log(state);20});21var driver = new AndroidDriver();22var queryAppState = driver.queryAppState();23queryAppState.then(function (state) {24  console.log(state);25});26var driver = new AndroidDriver();27var queryAppState = driver.queryAppState();28queryAppState.then(function (state) {29  console.log(state);30});31var driver = new AndroidDriver();32var queryAppState = driver.queryAppState();33queryAppState.then(function (state) {34  console.log(state);35});36var driver = new AndroidDriver();37var queryAppState = driver.queryAppState();38queryAppState.then(function (state) {39  console.log(state);40});