-});
-
-wlxml.registerExtension(extension);
-
-// wlxml.registerClassTransformation('list', {
-// name: 'insertItem',
-// impl: function(item) {
-// if(!item.is('item')) {
-// throw new Error ('...');
-// }
-// this.append(item);
-// }
-// });
-
-// wlxml.registerClassMethod('list', {
-// name: 'items',
-// impl: function() {
-// var node = this;
-// return this.contents();
-// }
-// });
-
-//a atrybuty? registerClassAttrs? E... lepiej registerClassExtension({methods, attibutes})