/** Pretty print the document body. */
public static void prettyPrint(Abdera abdera, Base doc) throws IOException {
WriterFactory factory = abdera.getWriterFactory();
Writer writer = factory.getWriter("prettyxml");
writer.writeTo(doc, System.out);
System.out.println();
}
/** Print the updated elements of the feed entries. */
public static void printEntryUpdates(String title, String indent, Feed feed) {