BsonElement mapping for Objects and Arrays of Objects

Working with Data Drivers & ODMs
#1

How would I use BsonElement syntax to map the array of reviews in the sample_airbnd.listingsAndReviews collection into a class for the document?
This isn’t working

[BsonIgnoreExtraElements]
    class ListingAndReview
    {
        [BsonId]
        public long Id { get; set; }

        [BsonElement("name")]
        public String Name { get; set; }

        [BsonElement("room_type")]
        public String RoomType { get; set; }

        [BsonElement("property_type")]
        public String PropertyType { get; set; }

        [BsonElement("amenities")]
        public String[] Amenities { get; set; }
/*
        [BsonElement("host")]
        [BsonIgnoreIfNull]
        public IEnumerable<Host> Host { get; set; }
*/
    }
#2

OK, lots of embarrassment for asking this question now.
Below is a sample Mapping Class for the listingsAndReviews collection:

namespace MongoDbPlay
{
    [BsonIgnoreExtraElements]
    class Host
    {
        [BsonElement("host_id")] public long HostId { get; set; }
        [BsonElement("host_url")] public string HostUrl { get; set; }
        [BsonElement("host_name")] public string HostName { get; set; }
    }

    [BsonIgnoreExtraElements]
    class Review
    {
        [BsonElement("_id")] public long Id { get; set; }
        [BsonElement("date")] public DateTime Date { get; set; }
        [BsonElement("comments")] public string Comments { get; set; }
    }

    [BsonIgnoreExtraElements]
    class ListingAndReview
    {
        [BsonId] public long Id { get; set; }
        [BsonElement("name")] public string Name { get; set; } = null!;
        [BsonElement("room_type")] public string RoomType { get; set; } = null!;
        [BsonElement("property_type")] public string PropertyType { get; set; } = null!;
        [BsonElement("amenities")] public List<string> Amenities { get; set; }
        [BsonElement("host")] [BsonIgnoreIfNull] public Host Host { get; set; }
        [BsonElement("reviews")][BsonIgnoreIfNull] public List<Review> Reviews { get; set; }
    }
}

My issue was a error message being thrown when just trying to work with the host object and in newbie fashion had [BsonElement(“host_name”)] public long HostName { get; set; } instead of string.
After fixing that it was all “as expected” to arrive at the above sample