[D] Action
[D] MessageProvider
[D] Outputter
[D] Renderer
[F] Action.php
[F] Argument.php
[F] Command.php
[F] CustomMessageProvider.php
[F] Element.php
[F] Exception.php
[F] MessageProvider.php
[F] Option.php
[F] Outputter.php
[F] Renderer.php
[F] XmlParser.php