Go 드라이버를 사용하여 MongoDB에서 중첩된 OR/AND 쿼리 필터를 만드는 방법은 무엇입니까?

package main

import (
    "context"
    "fmt"
    "time"

    "go.mongodb.org/mongo-driver/bson"
    "go.mongodb.org/mongo-driver/mongo"
)

func main() {
    ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
    defer cancel()

    client, err := mongo.NewClient(options.Client().ApplyURI("mongodb://localhost:27017"))
    if err != nil {
        panic(err)
    }
    defer client.Disconnect(ctx)

    collection := client.Database("test").Collection("people")

    // Create a nested OR/AND query filter
    filter := bson.D{
        {
            "$and", bson.A{
                bson.D{{"age", 30}},
                bson.D{{"$or", bson.A{
                    bson.D{{"name", "John"}},
                    bson.D{{"name", "Jane"}},
                }}},
            },
        },
    }

    // Find all people matching the filter
    cur, err := collection.Find(ctx, filter)
    if err != nil {
        panic(err)
    }
    defer cur.Close(ctx)

    // Iterate through the results and print each person's name
    for cur.Next(ctx) {
        var result bson.M
        if err := cur.Decode(&result); err != nil {
            panic(err)
        }
        fmt.Println(result["name"])
    }

    if err := cur.Err(); err != nil {
        panic(err)
    }
}