code: def zset(self, name, key, score=1):
          
          score = get_integer('score', score)        
          return self.execute_command('zset', name, key, score)
docs: Set the score of ``key`` from the zset ``name`` to ``score``
  
          Like **Redis.ZADD**
  
          :param string name: the zset name
          :param string key: the key name
          :param int score: the score for ranking
          :return: ``True`` if ``zset`` created a new score, otherwise ``False``
          :rtype: bool
  
          >>> ssdb.zset("zset_1", 'z', 1024)
          True
          >>> ssdb.zset("zset_1", 'a', 1024)
          False
          >>> ssdb.zset("zset_2", 'key_10', -4)
          >>>
          >>> ssdb.zget("zset_2", 'key1')
          42