class Person { private $name; public function __construct($name) { $this->name = $name; } private function getName() { return $this->name; } } $person = new Person("John"); echo $person->getProperty('name');In this example, the getProperty method is called to retrieve the value of the private name property of the Person object. The package library for this method is likely the PHP Core library, as it is a built-in function for PHP.