package lectures.undo_commands;
import util.annotations.WebDocuments;



@WebDocuments({"Lectures/UndoCommands.pptx", "Lectures/UndoCommands.pdf", "Videos/UndoCommands.avi"})
public interface Undoer {   
    public void undo();
    public void execute(UndoableCommand command);
    public void redo();
}