def METHOD_NAME(self, lang):
    """Provide data for the context and the uptodate list for the list of all classifiations."""
    kw = {
        "tag_path": self.site.config["TAG_PATH"],
        "taglist_minimum_post_count": self.site.config["TAGLIST_MINIMUM_POSTS"],
        "tzinfo": self.site.tzinfo,
        "tag_descriptions": self.site.config["TAG_DESCRIPTIONS"],
        "tag_titles": self.site.config.get(
            "TAGGED_PAGES_TITLES", self.site.config["TAG_TITLES"]
        ),
    }
    context = {
        "title": self.site.MESSAGES[lang]["Tags"],
        "description": self.site.MESSAGES[lang]["Tags"],
        "pagekind": ["list", "tags_page"],
    }
    kw.update(context)
    return context, kw