Workaround to hardcode aquiring bank on Magento 2.1.7 midtrans plugins

Redirect.php

// this redirect.php file on app/code/Midtrans/Snap/Controller/Redirect.php

if ($quote->getBaseCustomerBalanceAmount() != 0) {
            $balancAmount = array(
                'id' => 'STORE CREDIT',
                'price' => round($quote->getBaseCustomerBalanceAmount() * -1),
                'quantity' => 1,
                'name' => 'STORE CREDIT'
            );
            $item_details[] = $balancAmount;
        }

        $totalPrice = 0;
        foreach ($item_details as $item) {
            $totalPrice += $item['price'] * $item['quantity'];
        }
//Please add this line for activated Acquiring Bank
//1. Add this line
$credit_card['bank'] = "BCA";

  $transaction_details['gross_amount'] = $totalPrice;
        $payloads = array();
        $payloads['transaction_details'] = $transaction_details;
        $payloads['item_details'] = $item_details;
        $payloads['customer_details'] = $customer_details;

//2. Add creditcard array object to payloads object
        $payloads['credit_card'] = $credit_card;