@interface ISURLAuthenticationChallenge : ISAuthenticationChallenge + (id)_messageForProtectionSpace:(id)a0; + (id)_titleForProtectionSpace:(id)a0; - (id)user; - (id)sender; - (long long)failureCount; - (id)password; - (BOOL)hasPassword; - (void)cancelAuthentication; - (id)initWithAuthenticationChallenge:(id)a0; - (void)useCredential:(id)a0; @end