code: def respond_unauthorized(self, request_authentication=False):
  		
  		headers = {}
  		if request_authentication:
  			headers['WWW-Authenticate'] = 'Basic realm="' + self.__config['server_version'] + '"'
  		self.send_response_full(b'Unauthorized', status=401, headers=headers)
  		return
docs: Respond to the client that the request is unauthorized.
  
  		:param bool request_authentication: Whether to request basic authentication information by sending a WWW-Authenticate header.