private function getRequestId(ExternalPayment $external_payment)
{
$payment_options = array('pattern_id' => 'p2p', 'to' => $this->params['wallet'], 'amount' => $this->params['price'], 'message' => 'Подписка на газету FLStory');
$response = $external_payment->request($payment_options);
if ($response->status === 'success') {
$this->request_id = $response->request_id;
} else {
throw new \Exception($response->message);
}
}