@Override
protected void initialize() {
Macro incMacro = new IncludeMacro();
register(incMacro.getName(), incMacro);
Macro extMacro = new ExtendsMacro();
register(extMacro.getName(), extMacro);
Macro blkMacro = new BlockMacro();
register(blkMacro.getName(), blkMacro);
}