docs: function (object, images) {
              if (object) {
                  var skinImageProperties = this.skinImageProperties;
                  for (var i = 0, l = skinImageProperties.length; i < l; i++) {
                      var propName = skinImageProperties[i];
                      var value = object[propName];
                      if (value) {
                          images[value] = 1;
                      }
                  }
              }
          }