input: from typing import List
  
  
  def scrape_headlines(url: str) -> List[str]:
      """ Scrape the headlines from a given online news website. Returns a list of headlines.
      >>> scrape_headlines("https://www.news.com/")
      ['Headline 1', 'Headline 2', 'Headline 3']
      """
      import requests
      from bs4 import BeautifulSoup 
      
      # get the response in the form of html
      r = requests.get(url) 
      
      # create a beautifulsoup object to parse contents 
      soup = BeautifulSoup(r.content, 'html5lib') 
      
      # find headlines from the parsed page  
      headlines = soup.find_all('h2') 
      
      # return the headlines as a list
      return [headline.text for headline in headlines]
output:     import requests
      from bs4 import BeautifulSoup 
      
      # get the response in the form of html
      r = requests.get(url) 
      
      # create a beautifulsoup object to parse contents 
      soup = BeautifulSoup(r.content, 'html5lib') 
      
      # find headlines from the parsed page  
      headlines = soup.find_all('h2') 
      
      # return the headlines as a list
      return [headline.text for headline in headlines]