C# Get JSON property name

using System.Text.Json.Serialization;
class TestClass {

[JsonPropertyName("test-id")]
public string TestId { get; set; }

public static string GetName(string name) => typeof(CompanyInfo).GetProperty(name)?.GetCustomAttribute<JsonPropertyAttribute>()?.Name ?? name;

}

using Newtonsoft.Json;
class TestClass {

[JsonPropertyName("test-id")]
public string TestId { get; set; }

public static string GetName(string name) => typeof(CompanyInfo).GetProperty(name)?.GetCustomAttribute<JsonPropertyAttribute>()?.PropertyName ?? name;

}

Use as:

TestClass.GetName(nameof(TestClass.GetName))