anchor.diff:    oauth_twitter obj = new oauth_twitter(params); 
     var authorization = obj.getAuthorizationHeaders();
     
  -  // print(authorization);
     var url = "https://stream.twitter.com/1.1/statuses/sample.json";
     new HttpClient().getUrl(Uri.parse(url))
     
  
positive.code: import 'package:crypto/crypto.dart' as crypto;
  import 'dart:core';
  import 'package:json_object/json_object.dart';
  
  class oauth_twitter {
      String _oauth_consumer_key;   
  
negative.code: 
  
  void handleStream(response) {
  //  print(response);
    var value = JSON.decode(response);
     print(value);
     /* if response is decoded directly,
      * error "Unexpected end of string"
      * or error "Unexpected charaacter at [some_position]
      * is encountered
      */ 
  //   JsonObject data = new JsonObject.fromJsonString(value);
  //   print(data);
     // Cannot get values from data either :(
        
  }
  