anchor.diff:    }
   
     /// get
  -  /// Returns a json string, in practice this will be a DartivityResource.
  -  /// Null indicates the operation has failed for whatever reason
  +  /// Returns a json object, in practice this will be a DartivityResource.
  +  /// Null indicates the operation has failed for whatever reason.
     Future<json.JsonObject> get(String key, [String rev = null]) async {
  -    var completer = new Completer();
  +    Completer completer = new Completer();
       var res = await _wilt.getDocument(key, rev);
       if (!res.error) {
         json.JsonObject doc = res.jsonCouchResponse;
  
positive.code:     }
      return completer.future;
    }
  }
  
negative.code:   /// Wilt
    WiltServerClient _wilt;
  
    /// Database name
    static const String DB_NAME = "dartivity";
  
    /// Always the default port and HTTP, the database already exists, we
    /// do not create or delete it.
    DartivityDatabase(String hostname,
        [String username = null, String password = null]) {
      _wilt = new WiltServerClient(hostname, "5984", "http://");
      _wilt.db = DB_NAME;
  
      if ((username != null) && (password != null)) _wilt.login(
          username, password);
    }
  
    /// login
  