input: def crawl_website_for_phone_numbers(website: str) -> list:
      """ CRAWL A website for specific phone numbers.
      >>> crawl_website_for_phone_numbers('www.example.com')
      ['123-456-7890', '987-654-3210']
      """
output:     
      import requests
      from bs4 import BeautifulSoup
      import re
  
      response = requests.get(website)
      soup = BeautifulSoup(response.text, 'html.parser')
      text = soup.get_text()
  
      phone_pattern = re.compile(r'\b\d{3}-\d{3}-\d{4}\b')
      phone_numbers = phone_pattern.findall(text)
  
      return phone_numbers
  