PayPal\Test\Api\AgreementStateDescriptorTest::testSerializationDeserialization PHP Метод

    public function testSerializationDeserialization()
    {
        $obj = new AgreementStateDescriptor(self::getJson());
        $this->assertNotNull($obj);
        $this->assertNotNull($obj->getNote());
        $this->assertNotNull($obj->getAmount());
        $this->assertEquals(self::getJson(), $obj->toJson());
        return $obj;
    }