docs: function getType(key){
  
      var o = {
        attributes : this.attributes, 
        CONSIT     : this.CONSIT,
        nodes      : this.nodes
      };
      var ret = false;
  
      for (var i in o){
  
        if (key in o[i]){
          ret = i;
          break;
        }
  
      }
  
      return ret;
  
    }