Json Class Serializer

// setup a semi-complex test object
var someObject = new SomeObject();
someObject.anotherObject = new AnotherObject();
someObject.anotherObjectList = new List<AnotherObject>
{
	new AnotherObject(), new AnotherObject(), new AnotherObject(), new AnotherObject()
};

// serialize the class to json
var json = Json.jsonEncode( someObject );
Debug.Log( json );






// Test classes
public class SomeObject
{
	// fields
	public string someString;
	public int someInt;
	public float someFloat;
	public AnotherObject anotherObject;
	public List<AnotherObject> anotherObjectList;
	
	// props
	public string stringProp { get; set; }
	public int intProp { get; set; }
	public float floatProp { get; set; }
	protected string protectedStringPrivateGetProp { private get; set; }
	private string privateStringProp { get; set; }
	
	
	public SomeObject()
	{
		var rand = new Random();
		someString = Utils.randomString( 10 );
		someInt = rand.Next();
		someFloat = rand.Next();
		
		stringProp = Utils.randomString( 15 );
		intProp = rand.Next();
		floatProp = rand.Next();
		privateStringProp = Utils.randomString( 5 );
		protectedStringPrivateGetProp = Utils.randomString( 15 );
	}
	
}


public class AnotherObject
{
	public float turd;
	public string poopString;
	
	
	public AnotherObject()
	{
		turd = 3423.234f;
		poopString = Utils.randomString( 10 );
	}

}

What is this "Json" library ? https://gist.github.com/darktable/1411710 ?