input: def crawl_website_for_phone_numbers(website: str) -> list:
      """ Crawl a website for phone numbers and return a list of all phone numbers found.
      >>> crawl_website_for_phone_numbers('www.example.com')
      ['123-456-7890', '987-654-3210']
      >>> crawl_website_for_phone_numbers('www.another-example.com')
      []
      """
      response = requests.get(website)
      phone_numbers = re.findall('\d{3}-\d{3}-\d{4}', response.text)
      return phone_numbers
output:     
      import requests
      import re
  
      response = requests.get(website)
      phone_numbers = re.findall('\d{3}-\d{3}-\d{4}', response.text)
      return phone_numbers
  