code: def banner(self, *ids, _expand_macros=None):
          
          async def noop(s):
              return s
  
          _expand_macros = _expand_macros or noop
  
          @api_query('banner', banner=','.join(ids))
          async def result(_, root):
              banners = [await Banner(elem, _expand_macros)
                         for elem in root.find('BANNERS')]
              if not len(banners) == len(ids):
                  raise NotFound('one of the banner ids provided is invalid')
              return banners
          return result(self)
docs: Get data about banners by their ids.
  
          Macros in banners' names and descriptions are not expanded.
  
          Parameters
          ----------
          *ids : str
             Banner ids.
  
          Returns
          -------
          an :class:`ApiQuery` of a list of :class:`Banner`
  
          Raises
          ------
          :class:`NotFound`
              If any of the provided ids is invalid.