How to delete/remove bulk key in redis using .net core

I am using .net core. How to execute delete bulk keys redis ?
I have seen example other but it is not possible. Below code delete each key;
//delete từng key
var getKeys = redis.GetServer(“27.71.234.124”, 7778).Keys(0, “item”).ToArray();
await db.KeyDeleteAsync(getKeys);
Best regards.