input: Write a function to implement a web scraper in Python that extracts the top ten trending YouTube videos. The function should return a list of the titles of these videos.
  def scrape_top_ten_youtube_videos():
      import requests
      from bs4 import BeautifulSoup
      
      # make a request to get the page content
      page = requests.get("https://www.youtube.com/feed/trending")
      
      # parse the page content
      soup = BeautifulSoup(page.content, 'html.parser')
      
      # extract the list of trending videos
      trending_videos = soup.find_all(class_='expanded-shelf-content-item-wrapper')
      
      # get the titles of the top ten trending videos
      top_ten_videos = [video.find(class_='yt-uix-tile-link').get('title') for video in trending_videos[:10]]
      
      return top_ten_videos
  
  assert scrape_top_ten_youtube_videos() is not None
  assert len(scrape_top_ten_youtube_videos()) == 10
output: def scrape_top_ten_youtube_videos():
      import requests
      from bs4 import BeautifulSoup
      
      # make a request to get the page content
      page = requests.get("https://www.youtube.com/feed/trending")
      
      # parse the page content
      soup = BeautifulSoup(page.content, 'html.parser')
      
      # extract the list of trending videos
      trending_videos = soup.find_all(class_='expanded-shelf-content-item-wrapper')
      
      # get the titles of the top ten trending videos
      top_ten_videos = [video.find(class_='yt-uix-tile-link').get('title') for video in trending_videos[:10]]
      
      return top_ten_videos