public function render(IO $io, $indentation = 0)
    {
        $layout = new BlockLayout();

        $this->renderHelp($layout);

        $layout->render($io, $indentation);
    }
public function render(IO $io, $indentation = 0)
    {
        $layout = new BlockLayout();

        $this->renderHelp($layout);

        $layout->render($io, $indentation);
    }
public function render ( IO $ io , $ indentation = 0 ) { $ layout = new BlockLayout ( ) ; $ this -> renderHelp ( $ layout ) ; $ layout -> render ( $ io , $ indentation ) ; }
Renders the usage.

@param IO  $io          The I/O.
@param int $indentation The number of spaces to indent.
Renders the usage .