public function testSerializationDeserialization()
{
$obj = new CarrierAccount(self::getJson());
$this->assertNotNull($obj);
$this->assertNotNull($obj->getId());
$this->assertNotNull($obj->getPhoneNumber());
$this->assertNotNull($obj->getExternalCustomerId());
$this->assertNotNull($obj->getPhoneSource());
$this->assertNotNull($obj->getCountryCode());
$this->assertEquals(self::getJson(), $obj->toJson());
return $obj;
}