private function loadKeywords(ContainerBuilder $container)
    {
        $definition = new Definition('Behat\Gherkin\Keywords\CachedArrayKeywords', array(
            '%gherkin.paths.i18n%'
        ));
        $container->setDefinition(self::KEYWORDS_ID, $definition);

        $definition = new Definition('Behat\Gherkin\Keywords\KeywordsDumper', array(
            new Reference(self::KEYWORDS_ID)
        ));
        $container->setDefinition(self::KEYWORDS_DUMPER_ID, $definition);
    }