public Task <bool> PExpireAtAsync(string key, long timestamp) => MultiAsync(KeyCommands.PExpireAt(key, timestamp));
 public Task <bool> PExpireAtAsync(string key, DateTime date) => MultiAsync(KeyCommands.PExpireAt(key, date.GetUnixTime()));
 public bool PExpireAt(string key, long timestamp) => Multi(KeyCommands.PExpireAt(key, timestamp));
 public bool PExpireAt(string key, DateTime date) => Multi(KeyCommands.PExpireAt(key, date.GetUnixTime()));