private function loadSnippetAppender(ContainerBuilder $container)
    {
        $definition = new Definition('Behat\Behat\Context\Snippet\Appender\ContextSnippetAppender', array(
            new Reference(FilesystemExtension::LOGGER_ID)
        ));
        $definition->addTag(SnippetExtension::APPENDER_TAG, array('priority' => 50));
        $container->setDefinition(SnippetExtension::APPENDER_TAG . '.context', $definition);
    }