wikimedia/mediawiki-extensions-DonationInterface

<?php
class BraintreeDonationApi extends DonationApi {
    public function getAllowedParams() {
        return parent::getAllowedParams() + [
                'payment_token' => $this->defineParam(),
                'user_name' => $this->defineParam(),
                'customer_id' => $this->defineParam(),
                'processor_contact_id' => $this->defineParam(),
                'gateway_session_id' => $this->defineParam(),
                'device_data' => $this->defineParam(),
            ];
    }
}