code: function () {
                      var props= {};
                      lang.mixin(props,config);
                      props.templateStore = templateStore;
                      props.pageStore = pageStore;
                      props.fileStore = fileStore;
                      props.preview=true;
                      var templateToSchemaTransformer = new TemplateSchemaTransformer({ctx:ctx,store:templateStore, partialStore:partialStore});
                      props.templateToSchemaTransformer = templateToSchemaTransformer;
  
  					var renderer = new Renderer(props);
  					return renderer;
  				}
docs: aspect.after(pageStore, "onUpdate", lang.hitch(previewer, "refresh"));