How to use the httpntlm.ntlm.createType3Message function in httpntlm

'CgC6RwAAAA9EAEUAUwBLAFQATwBQAC0ASgBTADQAVQBKAFQARAACAB4ARABFAFMA' +
            'SwBUAE8AUAAtAEoAUwA0AFUASgBUAEQAAQAeAEQARQBTAEsAVABPAFAALQBKAFMA' +
            'NABVAEoAVABEAAQAHgBEAEUAUwBLAFQATwBQAC0ASgBTADQAVQBKAFQARAADAB4A' +
            'RABFAFMASwBUAE8AUAAtAEoAUwA0AFUASgBUAEQABwAIADmguzCHn9UBAAAAAA==',
        parsedType2Message = ntlmUtils.parseType2Message(type2Message, _.noop),

        username = options.username || 'username',
        password = options.password || 'password',
        domain = options.domain || '',
        workstation = options.workstation || '',

        type1Message = ntlmUtils.createType1Message({
            domain,
            workstation
        }),
        type3Message = ntlmUtils.createType3Message(parsedType2Message, {
            domain,
            workstation,
            username,
            password
        }),

        handler = function (req, res) {
            var authHeaders = req.headers.authorization;

            // send type2 message and ask for type3 message
            if (authHeaders && authHeaders.startsWith(type1Message.slice(0, 20))) {
                res.writeHead(401, {

                    // @note we're sending a 'Negotiate' header here to make
                    // sure that runtime can handle it.
                    'www-authenticate': [type2Message, 'Negotiate']

ntlmType2Header = response.headers.find(function (header) {
                return String(header.key).toLowerCase() === WWW_AUTHENTICATE &&
                    header.valueOf().startsWith('NTLM ');
            });

            if (!ntlmType2Header) {
                return done(new Error('ntlm: server did not send NTLM type 2 message'));
            }

            challengeMessage = ntlmUtil.parseType2Message(ntlmType2Header.valueOf(), _.noop);

            if (!challengeMessage) {
                return done(new Error('ntlm: server did not correctly process authentication request'));
            }

            authenticateMessage = ntlmUtil.createType3Message(challengeMessage, {
                domain: domain,
                workstation: workstation,
                username: username,
                password: password
            });

            // Now create the type 3 message, and add it to the request
            auth.set(NTLM_HEADER, authenticateMessage);
            auth.set(STATE, STATES.T3_MSG_CREATED);

            // ask runtime to replay the request
            return done(null, false);
        }
        else if (state === STATES.T3_MSG_CREATED) {
            // Means we have tried to authenticate, so we should stop here without worrying about anything
            return done(null, true);