await redis.zadd("key", 
    { score: 1, member: "m1" },
    { score: 2, member: "m2" },
    { score: 3, member: "m3" },
    { score: 4, member: "m4" },
)

const scores = await redis.zmscore("key", ["m2", "m4"])
console.log(scores) // [2, 4]