input: from typing import Tuple
  
  def parse_url(url: str) -> Tuple[str, str, str]:
      """Given a URL, parse it and return the protocol, domain name, and path as a tuple.
      
      >>> parse_url('https://www.example.com/path/to/file')
      ('https', 'www.example.com', '/path/to/file')
      """
      import urllib.parse
      parsed_url = urllib.parse.urlparse(url)
      protocol = parsed_url.scheme
      domain_name = parsed_url.netloc
      path = parsed_url.path
      return (protocol, domain_name, path)
output:     import urllib.parse
      parsed_url = urllib.parse.urlparse(url)
      protocol = parsed_url.scheme
      domain_name = parsed_url.netloc
      path = parsed_url.path
      return (protocol, domain_name, path)