Gc\Registry::set PHP Метод

    public static function set($index, $value)
    {
        $instance = self::getInstance();
        $instance->offsetSet($index, $value);
    }

 /**
  * Test
  *
  * @return void
  */
 public function testOffsetExists()
 {
     $this->object->set('key', 'value');
     $this->assertTrue($this->object->isRegistered('key'));
 }