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'],
        "tag_pages_are_indexes": self.site.config['TAG_PAGES_ARE_INDEXES'],
        "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['TAG_TITLES'],
    }
    context = {
        "title": self.site.MESSAGES[lang]["Tags"],
        "description": self.site.MESSAGES[lang]["Tags"],
        "pagekind": ["list", "tags_page"],
        "tag_descriptions": self.site.config['TAG_DESCRIPTIONS'](lang),
        "tag_titles": self.site.config['TAG_TITLES'](lang),
    }
    kw.update(context)
    return context, kw