convert class to json c 23 and save to file

1            string fileName = "WeatherForecast.json"; 
2            string jsonString = JsonSerializer.Serialize<WeatherForecast>(weatherForecast);
3            File.WriteAllText(fileName, jsonString);

1using System;
2using System.Text.Json;
3
4namespace SerializeWithGenericParameter
5{
6    public class WeatherForecast
7    {
8        public DateTimeOffset Date { get; set; }
9        public int TemperatureCelsius { get; set; }
10        public string Summary { get; set; }
11    }
12
13    public class Program
14    {
15        public static void Main()
16        {
17            var weatherForecast = new WeatherForecast
18            {
19                Date = DateTime.Parse("2019-08-01"),
20                TemperatureCelsius = 25,
21                Summary = "Hot"
22            };
23
24            string jsonString = JsonSerializer.Serialize<WeatherForecast>(weatherForecast);
25
26            Console.WriteLine(jsonString);
27        }
28    }
29}