// Retrieve the TemporalIterator's child and ensure that it
// only has a single child.
int numChildren = temporal.getNumChildren();
if (numChildren != 1) {
throw new RendererException(exceptionLocalizer.format(
"render-temporal-iterator-multiple-children"));
}
Format child = temporal.getChildAt(0);
// Use the open/closeSlide method in the protocols to create