input: 
  def parse_url(url: str) -> str:
      """Parse the given URL and return a formatted string containing the protocol, domain name, and path.
      >>> parse_url('https://www.example.com/path/to/file')
      'Protocol: https\\nDomain name: www.example.com\\nPath: /path/to/file'
      """
      import urllib.parse
  
      parsed_url = urllib.parse.urlparse(url)
  
      # Get the protocol
      protocol = parsed_url.scheme
  
      # Get the domain name
      domain_name = parsed_url.netloc
  
      # Get the path
      path = parsed_url.path
  
      # Return the formatted string
      return f'Protocol: {protocol}\nDomain name: {domain_name}\nPath: {path}'
  
output:     import urllib.parse
  
      parsed_url = urllib.parse.urlparse(url)
  
      # Get the protocol
      protocol = parsed_url.scheme
  
      # Get the domain name
      domain_name = parsed_url.netloc
  
      # Get the path
      path = parsed_url.path
  
      # Return the formatted string
      return f'Protocol: {protocol}\nDomain name: {domain_name}\nPath: {path}'