def load(self):
host = self.args.get("host")
url = self.args.get("url")
port = self.args.get("port", None)
username = self.args.get("username", None)
password = self.args.get("password", None)
protocol = self.args.get("protocol", "https")
self.carddav = CardDAV(host, url, port, username, password, protocol)
