401     def add_header(self, key, val):  argument
405     def add_unredirected_header(self, key, val):  argument
839     def add_password(self, realm, uri, user, passwd):  argument
850     def find_user_password(self, realm, authuri):  argument
900     def find_user_password(self, realm, authuri):  argument
914     def add_password(self, realm, uri, user, passwd, is_authenticated=False):  argument
1012     def retry_http_basic_auth(self, host, req, realm):  argument
2270     def retry_proxy_http_basic_auth(self, url, realm, data=None):  argument
2288     def retry_proxy_https_basic_auth(self, url, realm, data=None):  argument
2306     def retry_http_basic_auth(self, url, realm, data=None):  argument
2320     def retry_https_basic_auth(self, url, realm, data=None):  argument
2334     def get_user_passwd(self, host, realm, clear_cache=0):  argument
2345     def prompt_user_passwd(self, host, realm):  argument