code: def store_lines(self, key, content):
          '''like store_iter, but appends a newline to each chunk of
          content'''
          return self.store_iter(
              key,
              (data + '\n'.encode('utf-8') for data in content)f store_lines(self, key, content):
          '''like store_iter, but appends a newline to each chunk of
          content'''
          return self.store_iter(
              key,
              (data + '\n'.encode('utf-8') for data in content))
docs: like store_iter, but appends a newline to each chunk of
          content