code: def zlexcount(self, name, min, max):
          
          with self.pipe as pipe:
              return pipe.zlexcount(self.redis_key(name), min, max)
docs: Return the number of items in the sorted set between the
          lexicographical range ``min`` and ``max``.
  
          :param name: str     the name of the redis key
          :param min: int or '-inf'
          :param max: int or '+inf'
          :return: Future()