input: Write a function to create a webscraper using Python’s Selenium that retrieves data from an online store.
  assert create_webscraper()==None
  assert driver.page_source.find("shoes")!=-1
  assert len(driver.find_elements_by_class_name("product"))>0
output: def create_webscraper():
      from selenium import webdriver
      driver = webdriver.Chrome()
      driver.get("https://example-online-store.com")
      return driver