I want to get the  collection shard key infomation and used the following code, whitch return error with  "Command printShardingStatus failed: no such cmd: printShardingStatus"

```

using MongoDB.Driver; var client = new MongoClient("mongodb://reeeer:3*eefhu@124.9.75.107:8888,124.9.76.69:8888"); var database = client.GetDatabase("admin"); var command = new BsonDocument {

{"printShardingStatus", 1}

}; var result = database.RunCommand(command); // 输出结果 Console.WriteLine(result);

```

And the version of mongodb.driver is 2.19.0, the version of mongodb is 4.0.2;

The account has administrator privileges；

Dose the driver didn't support the printShardingStatus cmd or is there an error in  my code?