package lc.mecha.graph;

/**
 * Classes implementing <code>DGKey</code> represent a portion of a directed graph path.
 *
 * @author Alex Leigh
 * @since mk11 (ZERO CONTRAST)
 */
public interface DGKey {
    /**
     * Return a portable string representing this <code>DGKey</code>.
     */
    String getPortableString();
}
