code: def _music_lib_search(self, search, start, max_items):
          response = self.contentDirectory.Browse([
              ('ObjectID', search),
              ('BrowseFlag', 'BrowseDirectChildren'),
              ('Filter', '*'),
              ('StartingIndex', start),
              ('RequestedCount', max_items),
              ('SortCriteria', '')
          ])
          metadata = {}
          for tag in ['NumberReturned', 'TotalMatches', 'UpdateID']:
              metadata[camel_to_underscore(tag)] = int(response[tag])
          return response, metadata