- (void)loginWithToken:(NSString *)token
              serverId:(NSString *)serverId
               groupId:(NSString *)groupId
             groupName:(NSString *)groupName
              userName:(NSString *)userName
            passphrase:(NSString *)passphrase
              password:(NSString *)password
         integratorKey:(NSString *)integratorKey
            completion:(void(^)(NSError *error))completionBlock;