问使用Redis类型时的类型错误

EN

const idUser: string
Argument of type '[string, (err: any, data: any) => void]' is not assignable to parameter of type '[key: RedisCommandArgument] | [options: CommandOptions<ClientCommandOptions>, key: RedisCommandArgument]'.
  Type '[string, (err: any, data: any) => void]' is not assignable to type '[options: CommandOptions<ClientCommandOptions>, key: RedisCommandArgument]'.
    Type at position 0 in source is not compatible with type at position 0 in target.
      Type 'string' is not assignable to type 'CommandOptions<ClientCommandOptions>'.
        Type 'string' is not assignable to type '{ readonly [symbol]: true; }'.

import { Response, Request, NextFunction } from "express"; 
    import * as redis from "redis";
    import { RedisClientOptions } from "redis";
    const redisClient = redis.createClient({
      url: "127.0.0.1:6379",
      legacyMode: true,
    });
    const isCached = (req: Request, res: Response, next: NextFunction) => {
      const { idUser } = req.params;
      // getting our data by key (id)
      redisClient.get(idUser, (err, data) => {
        if (err) {
          res.status(500).send(err);
        }
        if (data != null) {
          console.log("we Found it in Redis ");
          res.send(data);
        } else {
          console.log("User Not Found  ");
          // go To ⏭️ function or middleware
          next();
        }
      });
    };
    export default isCached;