Execute um comando

db := client.Database("sample_restaurants")
// Retrieves statistics about the specified database
command := bson.D{{"dbStats", 1}}
var result bson.M
// Runs the command and prints the database statistics
err := db.RunCommand(context.TODO(), command).Decode(&result)
// Prints a message if any errors occur during the command execution
if err != nil {
	panic(err)
}

// results truncated
{
    "avgObjSize": 548.4101901854896,
    "collections": 2,
    "dataSize": 14014074,
    "db": "sample_restaurants",
    "indexSize": 286720,
    ...,
}