<TargetFramework>net11.0</TargetFramework>

JsonTypeInfo<T> GetTypeInfo<T>()

bool TryGetTypeInfo<T>(out JsonTypeInfo<T>? typeInfo)

static JsonNamingPolicy PascalCase { get; }

using System.Text.Json;
using System.Text.Json.Serialization.Metadata;

var options = new JsonSerializerOptions(JsonSerializerDefaults.Web);

// Retrieve strongly-typed metadata for MyClass
JsonTypeInfo<MyClass> typeInfo = options.GetTypeInfo<MyClass>();
Console.WriteLine($"Type: {typeInfo.Type.Name}");

using System.Text.Json;
using System.Text.Json.Serialization.Metadata;

var options = new JsonSerializerOptions(JsonSerializerDefaults.Web);

if (options.TryGetTypeInfo<MyClass>(out var info))
{
    Console.WriteLine($"Resolved type info for {info!.Type.Name}");
}
else
{
    Console.WriteLine("Type info not available");
}

using System.Text.Json;

var opts = new JsonSerializerOptions
{
    PropertyNamingPolicy = JsonNamingPolicy.PascalCase
};

var obj = new { firstName = "John", lastName = "Doe" };
string json = JsonSerializer.Serialize(obj, opts);
Console.WriteLine(json);
// Output: {"FirstName":"John","LastName":"Doe"}

using System.Text.Json;
using System.Text.Json.Serialization.Metadata;

var options = new JsonSerializerOptions
{
    PropertyNamingPolicy = JsonNamingPolicy.PascalCase
};

JsonTypeInfo<Person> typeInfo = options.GetTypeInfo<Person>();
string json = JsonSerializer.Serialize(new Person("Jane", 30), typeInfo);
Console.WriteLine(json);
// Output: {"Name":"Jane","Age":30}

public record Person(string Name, int Age);