lLen(key: string): number

import redis from "pts/redis";

let client = new redis.Client("redis://:<password>@<host>:6379/0");

export default function main() {
    let lPushResp = client.lPush("list", "foo", "bar", "zoo");
    console.log(`redis lPush ${lPushResp}`); // 3
    let lLenResp = client.lLen("list");
    console.log(`redis lLen ${lLenResp}`); // 3
}