input: from typing import List
  
  def crawl_website_for_phone_numbers(website: str) -> List[str]:
      """
      Crawl a given website for phone numbers matching the pattern 'xxx-xxx-xxxx'.
  
      >>> crawl_website_for_phone_numbers('www.example.com')
      ['123-456-7890', '987-654-3210']
      """
      import requests
      import re
      
      response = requests.get(website)
      phone_numbers = re.findall(r'\d{3}-\d{3}-\d{4}', response.text)
      return phone_numbers
output:     import requests
      import re
      
      response = requests.get(website)
      phone_numbers = re.findall(r'\d{3}-\d{3}-\d{4}', response.text)
      return phone_numbers