code: def meta_tags(cls, **kwargs):
          
          page_meta = cls._global.get("__META__", {})
          page_meta.update(**kwargs)
          cls.g(__META__=page_meta)
docs: Meta allows you to add meta data to site
          :params **kwargs:
  
          meta keys we're expecting:
              title (str)
              description (str)
              url (str) (Will pick it up by itself if not set)
              image (str)
              site_name (str) (but can pick it up from config file)
              object_type (str)
              keywords (list)
              locale (str)
              card (str)
  
              **Boolean By default these keys are True
              use_opengraph
              use_twitter
              use_googleplus