RssLanguage
RssLanguage.LANGUAGE_CODE_PATTERN
ItunesPodcast.setExplicit(boolean)
ItunesPodcastEpisode.isExplicit()
ItunesPodcast.isExplicit()
RssChannel.Builder.language(io.micronaut.rss.RssLanguage)
ItunesPodcastEpisode.setExplicit(boolean)
RssChannel.setLanguage(RssLanguage)