input: 
  def web_scraper() -> None:
      """
      Scrapes data from an online web store using Python BeautifulSoup.
      
      >>> web_scraper()
      None
      """
      import requests
      from bs4 import BeautifulSoup
      
      # Make a GET request to fetch the raw HTML content
      html_content = requests.get('http://web-store.com').text
      
      # Parse the html content
      soup = BeautifulSoup(html_content, "lxml")
      
      # Get the product data
      products = soup.find_all('div', attrs={"itemprop": "product"})
      for product in products:
          name = product.find("span", attrs={"itemprop": "name"}).text
          price = product.find("span", attrs={"itemprop": "price"}).text
          description = product.find("span", attrs={"itemprop": "description"}).text
          print(name, price, description)
output:     # Save the scraped data to a file
      with open("scraped_data.txt", "w") as file:
          for product in products:
              name = product.find("span", attrs={"itemprop": "name"}).text
              price = product.find("span", attrs={"itemprop": "price"}).text
              description = product.find("span", attrs={"itemprop": "description"}).text
              file.write(f"{name}, {price}, {description}\n")