internship-playground/src-php/app/internship/model/TestModel.php

<?php

namespace custom\model;

use n2n\context\attribute\ThreadScoped;
use n2n\context\attribute\SessionScoped;

#[ThreadScoped]
class TestModel {

	#[SessionScoped]
	private ?string $test = null;

	function getTest() {
		return $this->test;
	}

	function setTest(string $str) {
		$this->test = $str;
	}
}