public function setCreditCard(CreditCard $creditCard)
    {
        $creditCard->setContext(Moip::PAYMENT);
        $this->data->fundingInstrument->method = self::METHOD_CREDIT_CARD;
        $this->data->fundingInstrument->creditCard = $creditCard->getData();
        //$this->setCreditCardHolder($holder);

        return $this;
    }