How can I Automate Google 2 step mobile verification in selenium? - selenium

Question

Environment
Azure websites
Dot.net framework
Configuration
Selenium 3.14
Google Version 96.0.4664.110
Challenge
Using selenium automate Google 2 step mobile verification while singing in to application.
Tried using below code but not working.
import org.jboss.aerogear.security.otp.Totp;
public class TOTPGenerator {
/**
* Method is used to get the TOTP based on the security token
* #return
*/
public static String getTwoFactorCode(){
//Replace with your security key copied from step 12
Totp totp = new Totp("nlyyriaxspwdomi7buvo32cuas6tz7aa"); // 2FA secret key
String twoFactorCode = totp.now(); //Generated 2FA code here
return twoFactorCode;
}
}
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class TwoFactorGmail {
public static void gmailSignIn(){
System.setProperty("webdriver.chrome.driver", "path of the exe file\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.manage().window().maximize();
driver.get("your application url which embeds gmail sign-in");
driver.findElement(By.id("identifierId")).sendKeys("abc#gmail.com");
driver.findElement(By.id("identifierNext")).click();
driver.findElement(By.name("password")).sendKeys("password");
driver.findElement(By.id("passwordNext")).click();
// OTP value is returned from getTwoFactor method
driver.findElement(By.id("totpPin")).sendKeys(TOTPGenerator.getTwoFactorCode());
driver.findElement(By.id("totpNext")).click();
}
}