如何在.Net Core rest API响应中显示带有两个小数位的decimal数据类型

public class MyModel
{
    [JsonPropertyName("myDecimal")]
    [JsonConverter(typeof(DecimalConverter))]
    public decimal MyDecimal { get; set; }
}

public class DecimalConverter : JsonConverter<decimal>
{
    public override decimal Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
    {
        if (reader.TryGetDecimal(out decimal value))
        {
            return Math.Round(value, 2);
        }
        return 0;
    }

    public override void Write(Utf8JsonWriter writer, decimal value, JsonSerializerOptions options)
    {
        writer.WriteNumberValue(Math.Round(value, 2));
    }
}

[HttpGet]
public IActionResult Get()
{
    var model = new MyModel { MyDecimal = 10.123456m };
    var json = JsonSerializer.Serialize(model);
    return Ok(json);
}