input: 
  def parse_url(url: str) -> None:
      """ Parse the given URL and print out the protocol, domain name, and path using Python.
      >>> parse_url('https://www.example.com/path/to/file')
      Protocol: https
      Domain name: www.example.com
      Path: /path/to/file
      """
  
output:     import re
  
      match = re.match(r"(\w+)://([\w.-]+)(/.*)", url)
      if match:
          protocol = match.group(1)
          domain_name = match.group(2)
          path = match.group(3)
          print(f"Protocol: {protocol}")
          print(f"Domain name: {domain_name}")
          print(f"Path: {path}")