input: def scrape_trending_videos() -> List[str]:
      """ Extract and return the titles of the top ten trending YouTube videos.
      >>> scrape_trending_videos()
      ["Title1", "Title2", "Title3", ..., "Title10"]
      """
      # 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')
      
      # return the titles of the top ten trending videos
      return [video.find(class_='yt-uix-tile-link').get('title') for video in trending_videos[:10]]
output:     import requests
      from bs4 import BeautifulSoup