input: Write a function to implement a web scraper in Python that extracts the top ten trending YouTube videos. The function should make a request to YouTube's trending page, parse the page content, and print the titles of the top ten trending videos.
  
  assert extract_top_trending_videos() is None
  assert type(extract_top_trending_videos()) == type(None)
output: def extract_top_trending_videos():
      import requests
      from bs4 import BeautifulSoup
      
      url = "https://www.youtube.com/feed/trending"
      response = requests.get(url)
      soup = BeautifulSoup(response.content, 'html.parser')
      
      video_titles = []
      for title in soup.find_all('a', {'class': 'yt-simple-endpoint style-scope ytd-video-renderer'})[:10]:
          video_titles.append(title.text.strip())
      
      for title in video_titles:
          print(title)