/**
* Gets Json String of Object FundingInstrument
* @return string
*/
public static function getJson()
{
return '{"credit_card":' . CreditCardTest::getJson() . ',"credit_card_token":' . CreditCardTokenTest::getJson() . ',"payment_card":' . PaymentCardTest::getJson() . ',"payment_card_token":' . PaymentCardTokenTest::getJson() . ',"bank_account":' . ExtendedBankAccountTest::getJson() . ',"bank_account_token":' . BankTokenTest::getJson() . ',"credit":' . CreditTest::getJson() . '}';
}