input: def automate_login(website_url: str, username_input: str, password_input: str) -> str:
      """
      Automate the login process on a given website using Selenium. The function will navigate to
      the specified website, input the provided username and password, click the submit button, and
      wait for the login process to complete. It will then print a success message and close the web driver.
      
      >>> automate_login('http://www.example.com', 'username', 'password')
      'Login successful!'
      """
output:     from selenium import webdriver
      from selenium.webdriver.common.by import By
      from selenium.webdriver.common.keys import Keys
      import time
  
      driver = webdriver.Chrome()
      driver.get(website_url)
  
      username = driver.find_element(By.NAME, "username")
      password = driver.find_element(By.NAME, "password")
  
      username.send_keys(username_input)
      password.send_keys(password_input)
  
      submit_button = driver.find_element(By.NAME, "submit")
      submit_button.click()
  
      time.sleep(5)  # Wait for the login process to complete
  
      success_message = "Login successful!"
      print(success_message)
  
      driver.quit()
      return success_message