input: def retrieve_recent_articles(url: str) -> List[str]:
      """Given a URL of a news website, this function retrieves the 10 most recent articles.
      >>> retrieve_recent_articles('http://example.com/news')
      ['Article 1 text', 'Article 2 text', 'Article 3 text', 'Article 4 text', 'Article 5 text', 'Article 6 text', 'Article 7 text', 'Article 8 text', 'Article 9 text', 'Article 10 text']
      """
      import requests
      from bs4 import BeautifulSoup
  
      # get the source code 
      html_content = requests.get(url).text 
    
      # parse the html content 
      soup = BeautifulSoup(html_content, "lxml") 
    
      # get all the articles  
      articles = soup.find_all('article') 
    
      # return the text of the first 10 articles 
      return [article.text for article in articles[:10]]
output:     import requests
      from bs4 import BeautifulSoup
  
      # get the source code 
      html_content = requests.get(url).text 
    
      # parse the html content 
      soup = BeautifulSoup(html_content, "lxml") 
    
      # get all the articles  
      articles = soup.find_all('article') 
    
      # return the text of the first 10 articles 
      return [article.text for article in articles[:10]]