anchor.diff:      if (options != null) {
         return await authenticateCallback(req, res, options);
       } else {
  -      var result = await createRequestToken();
  +      var result = await getRequestToken();
         var token = result['oauth_token'];
         var url = baseUrl.replace(
             path: p.join(baseUrl.path, 'oauth/authenticate'),
  
positive.code:     print('Query: ${req.queryParameters}');
      var token = req.queryParameters['oauth_token'] as String;
      var verifier = req.queryParameters['oauth_verifier'] as String;
      var loginData = await _createAccessToken(token, verifier);
      var twitter = Twitter(this.options.clientId, this.options.clientSecret,
          loginData['oauth_token'], loginData['oauth_token_secret']);
      return await this.verifier(twitter, req, res);
  
negative.code:     return Uri.splitQueryString(body);
    }
  
    Future<Map<String, String>> getAccessToken(
        String token, String verifier) async {
      var request = await _prepRequest("oauth/access_token",
          method: "POST", data: {"verifier": verifier}, accessToken: token);
  