code: def _put_many(self, items):
          ''' store items in sqlite database
          '''
          for item in items:
              if not isinstance(item, self._item_class):
                  raise RuntimeError('Items mismatch for %s and %s' % (self._item_class, type(item)))
              self._put_one(itemf _put_many(self, items):
          ''' store items in sqlite database
          '''
          for item in items:
              if not isinstance(item, self._item_class):
                  raise RuntimeError('Items mismatch for %s and %s' % (self._item_class, type(item)))
              self._put_one(item)
docs: store items in sqlite database