anchor.diff:      return _parseUrlEncoded(request);
     }
   
  -  Future<Map<String, String>> createRequestToken() async {
  +  Future<Map<String, String>> getRequestToken() async {
       var request = await _prepRequest("oauth/request_token",
           method: "POST",
           data: {"oauth_callback": options.redirectUri.toString()});
  
positive.code:     return Uri.splitQueryString(body);
    }
  
    Future<Map<String, String>> _createAccessToken(
        String token, String verifier) async {
      var request = await _prepRequest("oauth/access_token",
          method: "POST", data: {"verifier": verifier}, accessToken: token);
  
negative.code:     print('Query: ${req.queryParameters}');
      var token = req.queryParameters['oauth_token'] as String;
      var verifier = req.queryParameters['oauth_verifier'] as String;
      var loginData = await getAccessToken(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);
  