Create a Card
You can create a Card implicity when creating a Transaction, or directly as seen below.
$cardReq = Pencepay_Request_CreditCard::build()
->cardholderName('John Hancock')
->number('4350100010001002')
->expiryMonth(10)
->expiryYear(2018)
->cvv('123')
->settings()
->makeDefault(true)
->done();
$card = Pencepay_CreditCard::create('customer_uid', $cardReq);
Create a Card with a Transaction
// TODO