mapdev\FacebookMessenger\Messages\ReceiptMessage::toArray PHP Метод

    public function toArray()
    {
        $this->checkRecipient();
        $payload = ['template_type' => 'receipt', 'recipient_name' => $this->recipient_name, 'order_number' => $this->order_number, 'currency' => $this->currency, 'payment_method' => $this->payment_method, 'summary' => $this->summary, 'elements' => $this->elements];
        if (!is_null($this->timestamp)) {
            $payload['timestamp'] = $this->timestamp;
        }
        if (!is_null($this->order_url)) {
            $payload['order_url'] = $this->order_url;
        }
        if (!is_null($this->address)) {
            $payload['address'] = $this->address;
        }
        if (!is_null($this->adjustments)) {
            $payload['adjustments'] = $this->adjustments;
        }
        return ['recipient' => ['id' => $this->recipient_id], 'message' => ['attachment' => ['type' => 'template', 'payload' => $payload]]];
    }