input: Write a python function to scrape and store the HTML content of a given website.
  assert scrape_website('https://example.com') is None
  assert scrape_website('https://httpbin.org/html') is None
output: def scrape_website(url):
      import requests
      try:
          response = requests.get(url)
          response.raise_for_status()
          with open('scraped_content.html', 'w', encoding='utf-8') as file:
              file.write(response.text)
      except requests.RequestException as e:
          print(f"An error occurred: {e}")
          return None