001package components.tree;
002
003import java.util.Iterator;
004
005import components.sequence.Sequence;
006
007/**
008 * Layered implementations of secondary methods for {@code Tree}.
009 *
010 * @param <T>
011 *            type of Tree labels
012 */
013public abstract class TreeSecondary<T> implements Tree<T> {
014
015    /*
016     * 2221/2231 assignment code deleted.
017     */
018
019}