refId = element.attr(ExtNodeConstants.ATTR_SNIPPET_REF);
if (element.hasAttr(ExtNodeConstants.SNIPPET_NODE_ATTR_PARALLEL)) {
ConcurrentRenderHelper crHelper = ConcurrentRenderHelper.getInstance(context, doc);
final Context newContext = context.clone();
final String declaration = renderDeclaration;
crHelper.submitWithContext(newContext, refId, new Callable<Renderer>() {
@Override
public Renderer call() throws Exception {
return invoker.invoke(declaration);
}
});