Omnipay\Common\Message\AbstractRequest::initialize PHP Метод

    public function initialize(array $parameters = array())
    {
        if (null !== $this->response) {
            throw new RuntimeException('Request cannot be modified after it has been sent!');
        }
        $this->parameters = new ParameterBag();
        Helper::initialize($this, $parameters);
        return $this;
    }

 public function setUp()
 {
     parent::setUp();
     $this->request = new DirectAuthorizeRequest($this->getHttpClient(), $this->getHttpRequest());
     $this->request->initialize(array('amount' => '12.00', 'currency' => 'GBP', 'transactionId' => '123', 'card' => $this->getValidCard()));
 }